指南:專家模式
專家模式是 Terraria 中的一個世界設定，它將大大增加難度，但提高了物品掉落率，並提供了少量獨特的 Boss 掉落。 敵怪造成的傷害更大，生命也越高，造成減益的持續時間是原來的兩倍，而且幾個 Boss 的行為也不同於普通模式。建議你先玩普通模式，感受一下遊戲的魅力。
請注意，大部分頁面內容也適用於大師模式，該模式基本上是專家模式的大幅增強版，僅在玩法上有細微變化。
開始
敵人有 10%（大師模式下為 20%）的額外擊退抗性，使得使用近程武器如銅短劍來攻擊它們變得更加困難。建議儘快使用木弓, 長矛, 或其他遠程武器作為替代品。
殭屍現在可能會揮舞著殭屍臂生成，它的傷害和攻擊範圍比普通殭屍要高得多。千萬不要在近距離攻擊這些敵人；沒有跳躍能力的玩家可能需要使用平台或繩子跳過他們而不被擊中。
在遊戲初期，獲得錢幣可能會很困難，因為玩家在死亡時會掉落原來自身 75%（在大師模式下為 100%）的錢幣。為了防止損失，把錢幣藏在箱子裡可能會有幫助，直到獲得超過 50 個銀幣時，商人才會生成。
防禦在專家和大師模式下更有效；每點防禦分別減少 0.75 或 1 的傷害。然而，敵人傷害的增加平衡了這個設定。護佑修飾語特別有價值；如果有必要，玩家可以使用 30 個蛛網製作多個白繩，直到獲得護佑修飾語的細繩。這時你可以裝備它，獲得額外的 4 點防禦。
建造城鎮是生存的關鍵，因為 2 個以上的 NPC 會降低敵怪生成率，並允許晶塔的使用，這將減少危險的跑路時間。在房屋側面留下 1x2 的洞，可以讓 NPC 攻擊外面的敵怪，這將比許多遊戲初期的裝備更有效。
食物是關鍵，因為沒有它，你的生命將以吃食物獲得增益效果一半的速度恢復。 有了吃得好或更好的食物，你可以獲得相當於普通模式的恢復能力。釣魚是獲得食物的傳統方式，從 1.4 版本開始，各種小動物也可以被烹飪。 獲得一個烹飪鍋或大鍋應該是早期的優先事項。
挖礦和資源採集
專家模式下的採礦與普通模式下的採礦類似，但強調的是避開敵人而不是殺死他們。如果不能完全避免戰鬥，建議使用弓、投擲武器、悠悠球、雪球炮或任何能從遠處攻擊的武器。
你應該不惜一切代價來避免踩到壓力板。即使是一個飛鏢機關，當與中毒的傷害結合在一起時，一次就能造成超過 100 的傷害。
還建議儘快得到一個抓鉤。鉤子不僅可以用來觀察地形和躲避敵人，而且還可以在打 Boss 時用來移動。在遊戲初期，最簡單的方法是向動物學家購買松鼠鉤。如果你遇到了一個蜘蛛生物群落，你可能想在離開之前四處看看（雖然很危險）。這樣做讓你有很大可能找到蛛絲箱，裡面總是有一個蛛絲吊索。另一種鉤子是寶石鉤，可以用任意相同類型的 15 個寶石製作。或者，你也可以通過在自然生成的陷阱的線路上放置一個骷髏、食人魚或裝甲步兵雕像來慢慢獲得一個爪鉤。
如果你收集了大量的錢幣，請回到基地並把它收起來。如果你在遠離基地的地方死亡，你有很大可能會失去你獲得的所有金錢，因為你掉落的錢幣比平時更多，而且敵人能夠偷走掉落的錢幣。
如果你在尋找礦石或箱子時遇到困難，洞穴探險藥水會很有用。
釣魚
釣魚為專家模式的玩家提供了幾個好處。
- 在困難模式開始後釣獲的寶匣可以讓你獲得困難模式的礦石，而無需下礦，甚至無需打破惡魔或猩紅祭壇。
- 釣魚可以獲得製作鯊魚龍氣球的材料，可以將其製作成粉馬掌氣球。馬蹄氣球加上霜花靴或氣球束可以為玩家提供類似於困難模式翅膀的機動性。
- 魚可以烹飪成食物。
- 漁夫可以讓你獲得絨毛胡蘿蔔，這時一個遊戲早期的坐騎，可以幫助應對困難的 Boss 戰，包括血肉牆。
- 釣魚可以提供耐力藥水和怒氣藥水或暴怒藥水的材料，這些強大的藥水使遊戲變得更加容易。
藥劑
藥水在專家模式中起著至關重要的作用。雖然不使用藥水也能相當容易地通過普通模式，但專家模式幾乎總是需要藥水。一些有用的藥水列舉如下：
- 再生藥水, 可增加 2HP / 秒的再生能力（需要瓶裝水，太陽花, 和蘑菇）。
- 鐵皮藥水，這將使你的防禦力增加 8 點，本質上給你一個更高等級的盔甲（需要瓶裝水，太陽花和鐵礦或鉛礦）。
- 耐力藥水，可使你受到的所有傷害減少 10%（需要瓶裝水，裝甲洞穴魚和閃耀根）。
- 怒氣藥水或暴怒藥水, 這將增加 10% 的傷害或暴擊率（需要瓶裝水，黑檀錦鯉或血腥食人魚和死亡草）。
對於射手玩家，以下藥水也很有用：
- 箭術藥水，將箭的傷害和速度提高 20%（對代達羅斯風暴弓而言非常有用）（需要瓶裝水，太陽花，晶狀體）。
- 彈藥儲備藥水，讓你有 20% 的機會不需要彈藥即可攻擊，如聖箭或水晶子彈（需要Bottled Water、雙鰭鱈魚和月光草）。
對於法師玩家，以下藥水也很有用：
- 魔能藥水，可以增加驚人的 20% 魔法傷害（需要瓶裝水，月光草，死亡草和墜落之星）。
- 魔力再生藥水, 使得玩家在移動式也像站在原地一樣恢復魔法，並接近正常魔法再生速度的極限（需要瓶裝水，月光草，太陽花和墜落之星）。
對於召喚玩家，以下藥水也很有用：
In hardmode, some good flasks are available to melee players:
- Flask of Ichor, which causes your melee attacks to lower the enemy defenses (requiring Bottled Water and 2 Ichor)
- Flask of Cursed Flames, which causes your melee attacks to inflict the Cursed Flame debuff (requiring Bottled Water and 2 Cursed Flame)
As such, it's recommended to build farms for Daybloom, Blinkroot, and Deathweed. Rangers, mages, or summoners will also want a Moonglow farm
Potions are easier to make with the Alchemy Table, which has a chance to not use ingredients in the potions you make.
為擊敗Boss作準備
在專家模式中，Boss有著更厚的血量，更高的傷害，以及特殊的工作方式或額外的特點。在沒有準備的情況下試圖擊敗Boss會困難得多，所以合適的場地和增益會比以往重要的多Bosses are harder in Expert mode because they have increased health, higher damage, and special attacks or extra stages. Fighting bosses unprepared will be much more difficult, so arenas and buffs become more important than before.
If in Multiplayer, it is best to fight bosses with all players present. Boss health is increased for each player logged into the server.
In early-game, avoid increasing your health past 180 unless you are prepared to have the Eye of Cthulhu spawn naturally (or don't care about dying to it). The following gear will prove helpful for this boss fight:
- Gold/Platinum armor
- Musket or The Undertaker
- Ice Blade or with some luck, Enchanted Sword
- Cloud in a Bottle (Tsunami, Blizzard or Sandstorm if you can get one)
- Hermes Boots or its derivative accessories
- A very well-made Arena will give you more chances to win.
- Minecarts are very cheap against the Eye of Cthulhu, as you can then travel faster than the boss itself.
- Food. If you do not have the Well Fed buff, your regeneration will be stunted in Expert mode.
- All the combat potion buffs. Almost all combat potion buffs can be obtained Pre-Hardmode, and can prove to be quite beneficial.
- Molten armor, if possible (obtainable after defeating Eater of Worlds or Brain of Cthulhu). Expert mode bosses are difficult! Molten armor can make the impossible fight doable.
Pre-Hardmode Bosses
King Slime
King Slime gains the ability to spawn Spiked Slimes, which shoot close-range arcing projectiles identical to the Spiked Ice or Spiked Jungle Slimes. He will teleport more aggressively towards the player and move faster at lower health. Long-range weapons are highly recommended, as is an arena which allows the player to circle up and over the boss to avoid getting trapped in a corner. The most important part of the fight is to keep your path clear of the slimes he spawns and avoid being close enough to get hit.
The Royal Gel, the Expert-exclusive drop, is useful if the player wishes not to be bothered by slimes during normal play; otherwise, there are usually better accessory choices. The Slimy Saddle and Slime Hook he drops are two very useful mobility items.
Eye of Cthulhu
The Eye of Cthulhu fights normally until it reaches its second form, at which point it will begin to dash rapidly depending on how much health it has lost. Unprepared players are likely to survive the first stage but die near the end, when its dashes become almost constant.
An ideal arena will provide lots of grappling points, which are your best option to avoid these dashes. Place lines of platforms both horizontally and vertically to provide multiple directions to grapple towards; treat them as a high-speed dodge option.
In the first stage, the Eye's attacks are easy to dodge; avoid getting hit at all costs to conserve health. Once the Eye transforms into its second form, spend some time killing all of the Servants of Cthulhu so they do not knock you into the path of a dash (a Sword may be helpful).
Once the Eye begins to dash constantly, it may be extremely difficult to hit it. Bows are not recommended if the player has trouble aiming; a Gun with high bullet velocity may be useful. Alternatively, throw Grenades in the predicted path of the Eye's dash.
The Eye drops the Shield of Cthulhu, which gives the player a sideways dash that bounces off enemies. This will make the Eye fight much easier on subsequent attempts, and allow the player to dash into normal enemies to avoid their melee attacks.
Eater of Worlds
The Eater of Worlds now shoots Vile Spit, a low-velocity, high-damage projectile normally fired by the Hardmode Corruptor enemy. If the Eater is fought above-ground, it will shoot Vile Spit almost constantly; it should be fought in the Chasms instead.
Clearing an arena with good vertical space is critical; use Sticky Bombs or other explosives to clear out sharp corners inside the Chasms and raise the height of the ceiling. Cover up holes in the floor and hammer out slopes; the player should be able to run in both directions without getting stuck on blocks.
Mobility is more important than usual, as the Eater of Worlds moves faster and is longer than its Normal Mode version. Avoid getting struck by the head, which does more damage than the body segments. If the Eater's body is obstructing the entire floor, the Slimy Saddle may be useful to bounce on the segments and avoid taking damage.
Vile Spit will be destroyed when hit by a player attack. Effective ways to block it include dashing into it with the Shield of Cthulhu or spinning a Flail.
Avoid using explosives during the fight, as they will deal 80% less damage in Expert. Use piercing weapons instead (see the strategy guide for further recommendations).
The Eater's unique drop is the Worm Scarf, which reduces incoming damage by a flat 17%. This accessory is most useful in late Hardmode when enemies have higher base damage, but is viable at any time.
Brain of Cthulhu
The Brain of Cthulhu has a few differences, most notably the ability to inflict several debuffs. The Creepers in the first phase may also inflict debuffs upon contact. In the second phase, it spawns decoys to try and confuse the player, and the decoys become less transparent as the boss's health depletes.
- Spiky Balls can consistently damage the boss and its minions, no matter where it teleports.
- A linear piercing weapon like the Space Gun or a bow with Jester's Arrows can quickly clear out the bunched-up Creepers.
- A multi-leveled arena made of platforms to move up and down helps a lot for dodging.
Fighting the brain gives resources needed to make the Deathbringer Pickaxe, and the Brain of Confusion can be quite useful in a pinch.
Since the decoys move based on the relative position of the player to the brain, it is possible to figure out which is the real Brain by moving immediately when it teleports. The decoys move very rapidly to keep the player in the center, and the real Brain will only move at its regular pace. Otherwise, you can abuse autopause to identify the real Brain from its map icon.
Queen Bee
Queen Bee only has differences when it comes to speed and buffed stats. Still, it's important you exploit her nature, in different ways.
- The stingers still can't pass through blocks.
- She can still only shoot downwards.
- The lower the health, the faster she shoots the stingers.
- The lower the health, the faster she dashes.
- The lower the health, the more bees she'll spawn at a faster rate.
- Use Spiky Balls and travel in a circle, posing yourself on the opposite side of her. This will make her try to move above you, and as the bee is below you she'll get caught in the spiky balls.
- The Bezoar negates the poison damage of the stingers.
- If you don't like moving around in circles, you can build an arena where there's platforms in tall rows, with half the arena covered in solid blocks. Because the stingers can't pass through blocks, this is a probable choice to use.
- If you aren't quite confident in your ability to dodge her rapid dashes near the end phase, you can use the Shield of Cthulhu to dash into her when she charges you, simultaneously negating the damage of her charge and dealing a small amount of damage to her. Watch out for stingers while you do this, as they can still deal their damage if she charges right after firing them.
Skeletron
Skeletron is one of the hardest bosses you'll fight in Expert Mode. The head's health is nearly doubled, the hands' health are nearly tripled, you have to defeat the hands before attacking the head, and once they're removed he shoots skulls that can be hard to avoid and have high damage. That said, here's a few tips:
- Shield of Cthulhu, obtained after defeating Eye of Cthulhu, is a very useful accessory for mobility.
- Try building an Arena that is both good for vertical and horizontal movements. It's easy to make the mistake of making a straight row of platforms, so make sure you have a tall arena as well.
- Tracks and a Minecart can be very useful to avoid his hands and skulls, but be careful: if you build your tracks too long, Skeletron will despawn. Due to his high speed and acceleration, the best shape for track arena would be a circle or an ellipse.
- If you want to challenge yourself and fight Skeletron before the Eye of Cthulhu, use a Hook with minecart tracks to hook to. With a nice hook, Sapphire Hook or better, the boots aren't even mandatory. However, it is highly suggested that you at least use the accessories as said above for Eye of Cthulhu.
- The head when spinning must be avoided, as it can leave you trapped and it's game over. You can escape the trap by using a Slime Mount to jump out of it.
- In the second phase, if you get used to the tempo of the skulls, you can cut through every few of them at the right time.
- If fighting him for the first time, try moving around in a circle when he starts shooting the skulls. A featherfall potion and rocket boots are great for this, possibly even negating the need for a tall arena.
- If you fight the Queen Bee before and obtain the Bee's Knees, it will make killing Skeletron nearly three times as fast. Drink an Archery Potion and he will be a piece of cake.
- He only shoots his skulls if you are in line of sight. Hiding under a layer of dirt or other solid block and using a yoyo can whittle his health down, and then running away while he spins. If you can take care of the hands, this is a good way to fight him.
Wall of Flesh
The Wall of Flesh is another boss that will shred you in Expert Mode if you don't run away soon enough. Not only does it have buffed stats, but The Hungry respawn, so a piercing weapon is essential. Also, the lower the health, the faster he gets, which is like normal mode, except he can get fast enough to outrun your Hermes Boots. Here's a few tips:
- A Demon Scythe with Jungle armor and Magic Power Potions will allow you to slaughter it off-screen by simply aiming in the direction of an eye and staying ahead with Movement Accessories.
- Keep him off-screen, this will make the lasers easier to dodge and stop you from getting hit by the wall.
- Beenades with a Hive Pack will end the fight in a mere minute. No strategy needed, just roll them out.
- Phoenix Blaster with Meteor Shot is still a nice weapon of choice, due to the rapid damage and piercing properties.
- Build a bridge covering at least half of your world for safety measures, and demolish any structures that are in your way. The fight is nearly impossible otherwise.
- You can use Water Walking Potions to circumvent the need for a bridge.
- You can also build a long railroad track to keep pace with the boss's speed.
- Grenades and Molotov Cocktails can be used as they explode on impact. Dynamite is much less environmentally friendly, but results in an even faster kill.
Preparing for Hardmode
The main thing about preparing for Hardmode is making sure you have good items. It also helps to be organized and make a chest room, sorting items by category. The items you want include:
- Ivy Whip
- Molten armor. Regardless of class, having the extra defense is really useful for early hardmode.
- Magic Mirror
- The Dungeon items (listed below)
- Potion ingredients and seeds. (See also: Guide:Gardening)
- Weapons with high base damage
In addition to gathering items, it is important to do other things such as:
- Obtain maximum health and mana
- Reforge weapons and accessories (Warding is recommended for going into hardmode)
- Optionally, create quarantines. Quarantining existing evil biomes, sectioning off certain areas (your base, the jungle, and the oceans), and digging a hellevator all help maintain the spread of the evils.
- Create a surface mushroom biome (for the Truffle)
- Make an arena with campfires and Heart Lanterns (consider honey, the Nurse, heart and star statues)
- Make extra NPC housing
- Set up Pylons around your world for fast travel
The Dungeon
After fighting Skeletron, it is time to raid the dungeon. You want to get in and out as fast as possible, because there is a high chance of dying. The important things to get are:
- Alchemy Table
- Bewitching Table
- Cobalt Shield
- Water Bolt
- Shadow Key
- Optionally, the Muramasa and Handgun (for the Terra Blade and Phoenix Blaster)
- The Mechanic NPC
- Some Water Candles
Feel free to gather as much as you can carry, but do not underestimate the difficulty of this area.
Hardmode
Once you have unlocked Hardmode, just like the start of the game, many enemies can once again kill you in a few hits. You'll need to find better armor and weapons.
Early items to go for
- Just like normal mode, break demon or crimson altars to spawn valuable ores for armors. Since defense reduces damage more in Expert mode than in normal mode, armor is more important than ever.
- For early melee weapons, yoyos are especially powerful. You can craft Chik or farm Amarok or Hel-Fire. The Dao of Pow is difficult to use, but strong.
- For early ranged weapons, the Onyx Blaster provides strong damage. The Daedalus Stormbow is also powerful, though not as much as it was, and can be difficult to get due to having to fight the Hallowed Mimic.
- For early magic weapons, you can craft spell tomes. Golden Shower is the best, followed by Cursed Flames and Crystal Storm. Sky Fracture is strong enough to last even through the mechanical bosses.
- For early summoning weapons, you can farm Black Recluse's for a Queen Spider Staff and Spider Staff. Recluses are incredibly deadly in Expert mode, but you can use yoyos, the Imp Staff, wall-piercing spells or sentries like the Ballista sentry summons to slowly defeat them.
Preparing for the mechanical bosses
Many of the best items are in the Biome Mimics, especially the Daedalus Stormbow and Dart Rifle or Dart Pistol. Biome mimics are deadly. You can farm them by using a Key of Light or Key of Night, but make sure to have as good of equipment as you can, and to fight it in a prepared arena.
Hardmode Bosses
Mechanical Bosses
The Twins
The Twins aren't much of a difference in expert mode, they just move faster and have buffed stats as most bosses have. Still however, here's a few tips to help out dodging:
- Spazmatism's cursed ball flames cause a lot of damage so it's important to dodge these for a safety measure. Simply move up and down at the right tempo to cut through the flames, and once he starts charging move to the side and fly away. Repeat process until he hits second form.
- Retinazer is a difficult opponent because the laser attack is unpredictable. When he starts dashing it's at longer strides at slower rates comparing to Spazmatism, so watch out for the dashes.
- Spazmatism's second form is simply faster and deadlier than on normal mode, so make sure you don't move in a straight line, shift up and down at opposite sides, reflecting off of the x-axis. In other words, move up when he dashes down, and move down when he dashes up. It will exploit the nature and make the fight 10x easier.
- Retinazer's second form tends to be the most difficult part for most people on average. But if you move in a circle, you'll most likely be fine.
- In general, like normal mode, make sure you kill one before getting the other in second form. (Spazmatism and then Retinazer is suggested)
- Another way to kill the Twins for single players is to get the meteor staff, spider staff, and spider armor and hang out in the nurses house. Spawn the spiders in the house. When you are low on health, heal with the nurse. When the nurse is low on health, she will heal herself so don't worry too much about her health. When one of The Twins charge at you, the spiders inside the house emit venom to that twin. When the twins are outside that house, use the meteor staff to attack. If you have damage boosting accessories, use them to your content. Make sure to have many mana potions (It doesn't matter what kind) and autopause ON.
- Gravitation Potions can also be useful if you want to free up an accessory slot or don't have wings.
The Destroyer
120,000 Health on The Destroyer sounds like a long road to drive on. But if you follow these tips, you'll pass the test with no problem:
- Daedalus Stormbow is a very popular bow for a particular reason: It's super cheap. Use it with Holy Arrows and the boss will go down in seconds.
- If you prefer Magic weapons, Medusa Head can damage each of The Destroyer's components, dealing 100-300 damage each hit. Using it can down The Destroyer in a few seconds.
- Avoid touching the head at all costs, as it does nearly 300 damage on contact. If a hit is unavoidable, try to hit a body segment, as they do considerably less damage.
- Long Swords are preferable, as The Destroyer is a Worm-boss type.
- Make a small 5x5 room, with the middle block on the bottom of it be a platform. Then just stand inside and throw dynamites.
- If you have the 5x5 room low enough so the Destroyer can go through it, you can use a sword like the Night's Edge to damage multiple segments of the Destroyer.
- If you're still having trouble, ride in a minecart!
- (These tips can also be used in normal mode)
Skeletron Prime
Skeletron Prime has the least difference out of the three mechanical bosses in expert mode, but here's a few tips anyways:
- Destroy the Prime Laser first, then go for the head.
- Make an Arena with platforms and not solid blocks, else the bombs will explode as you touch the solid ground on impact. The bombs are deadly so this is essential without tank gear.
- A great weapon of choice is the Megashark or even better, Shadowflame Knife. Shadowflame Knife is the weapon of choice against only this boss, although you can still use it for the Twins. Because the Knives bounce around on impact, you can target the head and as they bounce off, they can still hit the arms. Also apply the Shadowflame debuff, so with Frost armor and a Fire Gauntlet, the debuffs will make him melt to pieces. (It should, however, be noted that his head is immune to Shadowflame, both head and arms cannot be set on fire, and on the
電腦版、
主機版、和
移動版 the Fire Gauntlet cannot be obtained before defeating him anyway.) - Be wary of his spinning attack, as it gains a speed boost in expert mode.
Plantera
For many people, Plantera is the hardest boss to surpass without any cheesing. Here's a few tips:
- Make a very tall arena with the platforms near the top, this will help the Spiky Balls she shoots out to be easier to dodge as they'll fall towards the bottom.
- Make sure to not lead Plantera away from the Underground Jungle, as this will make it enter an enraged state where it's attacks and defense are boosted.
- Teleporters can also be useful to move from one end of your arena to the other, especially during Plantera's second form, so that you don't get cornered by the tentacles.
- You can also mine out a long tunnel and place minecart tracks through to avoid the fast movement in her second form. Using a combination of the mechanical cart and far ranged weapons, (Such as the True Night's Edge/Excalibur, Megashark, Magical Harp, or Sanguine Staff + Durendal) can help with the second form.
- Many projectiles can't go through blocks, so you can exploit this. You could use the Chlorophyte Partisan to damage it through blocks.
Golem
Golem barely has any difference in expert mode, just higher damage and health. Here's a few tips:
- Destroy the hands first.
- When the head starts shooting lasers, move back and forth above him in a "rainbow" formation.
- Build a simple platform near the ground, around 15 blocks above. It'll make the fight just a bit easier.
- Dart Pistol if you have a crimson world is superior to this boss, using Crystal Darts for the hands and head, then use Ichor Darts for the body.
- Also, if you were lucky enough have a crimson world and obtain a Crimson Key, use Vampire Knives if you want to steamroll him.
- If you have corruption, Scourge of the Corrupter is an absolute choice as well.
- Above all, Megashark is still considerable, with Chlorophyte Bullets.
- Suggested armor: Turtle Armor or above.
Duke Fishron
Duke Fishron is a fun boss to fight, especially in expert mode, with a new third stage at the end that will make your adrenaline go nuts. Here's a few tips:
- Possessed Hatchet is the #1 weapon of choice, especially for melee class characters.
- For a ranger, use the Tactical Shotgun with Chlorophyte Bullets.
- For a mage, use the Spectre Staff or the Leaf Blower.
- For a summoner, the Xeno Staff is a great weapon of choice as they will never miss, whereas other weapons would lag behind and fire inaccurate shots.
- Tips for Sharknados, make sure that they spawn on each edge of the ocean, switching left and right. This is very easy in the first stage, but in the second stage, be careful!
- For Duke Fishron, you can exploit his third form by jumping at a steady tempo, it may take a few tries but if you have a bottle equipped and you just jump up and down, falling/jumping RIGHT as he teleports each time, you'll be off the hook.
Moon Lord
A surefire way to defeat Moon Lord in Expert mode is via the Summoner kiting strategy, although it requires a bit of preparation.
It is essential that you dodge his phantasmal deathray, as it will kill you in seconds (the Rod of Discord is highly recommended for this, though grinding for it can be torturous). Also, you should make sure that all his eyes die at a close time, so that the true eyes of Cthulhu don't overwhelm you.
Make sure you have Super Healing Potions.
General Tips
Expert mode doesn't just make you prepare more, it makes you more cautious with getting hit. You can actually get so good at dodging that a Worm Scarf or Band of Regeneration won't be needed at all. Here's a few tips:
- Blizzard in a Bottle (or, even better, a Sandstorm in a Bottle) instead of Cloud in a Bottle make a tremendous difference in the long run.
- Sandstorm in a Bottle will give you the opportunity for the Bundle of Balloons without even traveling in another world, an extremely useful accessory. Just get the other two bottles, and then fish up in the sky for the Sky Crates and get two Shiny Red Balloons, the third can be gotten from a floating island originally in your world.
- The tips above include bottles because these accessories are essential for dodging, vertically. If you were fighting Duke Fishron, and he dashes towards you, if you were just wearing Wings, you'd most likely get hit. But if you had the Bundle of Balloons equipped, he would be a piece of cake.
- If you don't know what accessories to replace with these bottles, replace the Cobalt Shield/Obsidian Shield or any other type of accessory that neglects knockback. This is a possibility because dodging is much more important, and if you never get hit, you'd never need the shield. Besides, the shield makes getting hit less annoying, while the bottles and balloons help you get hit less often. Easy to say which method is more useful.
- Yoyos are a great addition to the game, and the name is shouted in Expert Mode. Amazon and Yelets are some of the cheapest ones to get. Amazon can be crafted for little materials right in the beginning of the game in the Jungle. Amarok can be gotten from any enemy by chance in the Ice biome in Hardmode. Yelets can be obtained from any enemy by chance in the Jungle biome after at least one Mechanical Boss is defeated in Hardmode.
- Banners are much more important in Expert mode: with their effect doubled, they essentially revert the affected enemies to their Normal mode stats -- except your Defense is still buffed compared to Normal mode. Take care to hold on to all the banners you can obtain and hang them in the areas you frequent most often, and your life will be much easier.
