This page is a candidate for deletion. [discuss] Reason: "An entire page dedicated to a phase of a boss is unnecessary, and tips can simply be placed on the main Empress guide article."
This is a Guide page. This means the page will walk you through a specific task, strategy, or enemy/boss fight.
Status: Subject to revision(This Guide does not meet certain quality standards and may be heavily outdated.)
Issues: • Incomplete and possibly redundant.Things to do: • Finish adding gear suggestions for all classes.
The Terraprisma is a powerful summon weapon that is dropped from the Empress of Light only when all damage dealt to the Empress occurs during the day. The Empress enrages during the daytime, causing all of her attacks to instantly kill the player, which vastly increases the difficulty of the boss fight.
In order to spawn the Empress of Light, you need to kill a Prismatic Lacewing. They spawn in the Hallow after Plantera has been killed and only spawn between dusk and midnight (7:30 PM and 12:00 AM). An easy way to ensure that all damage is dealt during the day is to use a Bug Net to catch a Prismatic Lacewing during the night and then release and kill it during the day.
The Fight
Differences between Night and Day
The Empress of Light will enrage if still alive or if summoned during the daytime, causing her attacks to do tens of thousands of damage, similar to the Dungeon Guardian, instantly killing players who are hit by her attacks. This enraged state is indicated by her attacks turning from rainbow to bright yellow.
Attacks
Prismatic Bolts – Summons a cloud of prismatic bolts that home in on the player after a short time. These bolts do not have perfect tracking, and will miss if the player makes a sharp turn as they approach. Because she is enraged, extra bolts are created, and they will spread out more before homing onto the player.
Dash Attack – Positions herself to the left or right of the player before charging horizontally in the player’s direction.
Sun Dance – Hovers above and slightly to the left of the player and emits 8 rays of light that slowly rotate clockwise. 3 sets of rays are created per sun dance, each positioned slightly more clockwise from the last.
Everlasting Rainbow – Releases a ring of 13 stars that spiral out clockwise, then spiral back in the same direction. These stars leave behind a trail of light that will damage the player.
Ethereal Lance – Summons a swarm of swords that launch in the direction the player was headed when they were summoned, telegraphed by colored beams. These swords are summoned behind where the player was moving, or all around the player if they were stationary. The swords do no damage until launched. Because she is enraged, extra swords are summoned, and they will launch faster.
Attack Pattern
The Empress has set attack patterns for both of her phases.
First phase
When spawned, the Empress will hover in place for a few seconds before executing the following attacks in order:
Prismatic Bolts
Dash Attack
Sun Dance
Dash Attack
Everlasting Rainbow
Prismatic Bolts
Dash Attack
Ethereal Lance
Dash Attack
Everlasting Rainbow
This sequence of attacks will repeat indefinitely until the second phase starts.
Second phase
When the Empress is below half health, she will disappear for a second, then reappear above the next estimated location of the player before executing a new set of attacks, with slightly shorter attack intervals than before:
Ethereal Lance Ver. 2: Summons 6 evenly spaced waves of swords that target specific points around the player instead of traveling from one side of the screen to the other. The first wave travels from the left side of the screen to the right of the player, the second wave from the right side to the left of the player, the third wave from top side to the bottom-right of the player, the fourth wave from top side to bottom-left of the player, the fifth wave from the bottom side to top-right of the player, and the sixth wave from the bottom side to top left of the player.
Prismatic Bolts
Dash Attack
Ethereal Lance
Everlasting Rainbow
Prismatic Bolts
Sun Dance
Ethereal Lance
Dash Attack
Prismatic Bolts (Cast in a circle around the Empress instead of a cloud directly above her)
This sequence of attacks will repeat indefinitely until she is defeated.
General Strategies
General Tips
Starting the battle just after the sunrise (4:30AM) will provide the maximum amount of time to defeat the boss.
Remember to use the Sharpening Station(Desktop, Console and Mobile versions), Ammo Box(Desktop, Console, Old-gen console and Mobile versions), Crystal Ball, Bewitching Table(Desktop, Console and Mobile versions) , and Slice of Cake(Desktop, Console and Mobile versions) prior to the battle. These will give boosts that are useful to have, with the first four being class-specific. They give Sharpened(Desktop, Console and Mobile versions), Ammo Box(Desktop, Console, Old-gen console and Mobile versions), Clairvoyance, Bewitched(Desktop, Console and Mobile versions) , and Sugar Rush(Desktop, Console and Mobile versions), respectively.
Terrain Preparation
A long straight section of terrain made of platforms, with a great amount of vertical space above is recommended. A few layers of platforms spaced vertically widely apart is also useful. It is up to the player how much horizontal space is required, but vertical space is key for this fight, as many of the attack patterns involve dodging by flying up or falling down. It's also generally better to fight her in Medium or Large worlds, as Small worlds do not provide enough space to dodge her attacks effectively, and can cause the player to get stuck in low gravity and get hit, or spawn Wyverns in, which if left unchecked, can easily snipe a player.
Gearing Up
Armor
This section assumes that melee, ranged, and magic players will use a hybrid summoning approach with minions, since the Terraprisma is useless in a non-summoning pure class playthrough. Furthermore, these suggestions aim to maximize potential damage output, as survivability is obviously useless in this fight.
For hybrid characters, it's recommended to alternate between a whip, like the Morning Star or Kaleidoscope, and your primary weapon every four seconds.
Summoners should use the Spooky set, or Tiki set if more whip range is needed.
Weapons
Melee
The Terra Blade is a great option due to it's wide arc and high damage output. The Flying Dragon(Desktop, Console and Mobile versions) can be used in a similar matter.
The Influx Waver has a higher damage potential than the Terra Blade, though it may be a bit more challenging to use.
The Flairon is the least powerful choice among the listed weapons, however it's homing abilities can prove useful.
It is recommended to prioritize increasing damage and critical strike chance over melee speed when using Flairon and Influx Waver, as their projectiles do not scale with melee speed like Terra Blade.
Ranged
The Tsunami can decimate the Empress and should be used with Venom Arrows or Ichor Arrows.
Ichor Arrows can only be made in a Crimson world, unless the player has made a artificial Crimson via the Dryad or transporting Seeds. The Clentaminator can also be used with Red Solution.
The Aerial Bane can take out the Empress pretty quickly. Use with the Venom Arrow.
The Xenopopper is an excellent option as well, it's best used with Chlorophyte Bullets or Crystal Bullets.
The Snowman Cannon deals lower damage overall but is a very safe option due to its powerful homing.
Magic
Betsy's Wrath is a great secondary weapon due to its powerful defense-lowering Debuff. It also deals formidable damage to be used as a primary weapon.
The Blizzard Staff is a very good choice due to its consistently high DPS. The Razorpine is a less potent but easier to use alternative.
The Bat Scepter may be utilized due to its homing capabilities and long range, however it has worse DPS, making it a weaker choice as a main weapon. However, it has the significant advantage of not requiring the player to focus on aiming at all, letting the player dodge attacks more effectively.
If the boss has been defeated previously, Nightglow(Desktop, Console and Mobile versions) is a superior substitute to the Bat Scepter.
Summoner
For Summoners intending to get the Terraprisma, there are a variety of options available depending on the player's progress -
The Raven Staff can be used for good DPS. However, its tracking is subpar, which can drag out the fight unnecessarily.
the Desert Tiger Staff(Desktop, Console and Mobile versions) provides a damage output that is comparable to that of Xeno Staff when used in conjunction with Firecracker. However, the short range of Firecracker(Desktop, Console and Mobile versions) makes it a risky option.
If the Lunatic Cultist and Stardust Pillar have been defeated, then it is recommended to allocate 3 minion slots to the Stardust Dragon(Desktop, Console and Mobile versions), while the remaining slots should be filled with Stardust Cell(Desktop, Console and Mobile versions).
It is recommended to fight the Empress of Light in the nighttime before hand, in order to gain the Kaleidoscope, which is a great option for most summons. It enables minions to deal critical hits, and has a large range, allowing you to greatly increase the DPS of your minions.
The Morning Star(Desktop, Console and Mobile versions) can be used as a substitute for the kaleidoscope if the latter hasn't been obtained, although it is not as powerful.
All the whips mentioned earlier can be paired with Dark Harvest(Desktop, Console and Mobile versions) and/or Durendal(Desktop, Console and Mobile versions) to further boost the damage.
It's also recommended to use the Soaring Insignia along with the wings for greatly increased mobility and infinite flight. Due to the nature of infinite flight, Wing choice can be made based on special abilities alone, making the Hoverboard a viable choice.
If the player is a pure summoner, it's recommended to use Summoner Emblem(Desktop, Console and Mobile versions) in the place of Destroyer Emblem, as minions do not benefit from critical strike chance bonuses.
If Golem has not been defeated any Old One's Army accessory can be used in place of the Celestial Shell in an offensive pure summoner build.
Survivability accessories like shields are not recommended for this battle; instead, prioritize mobility or damage increasing accessories.
Potions
Healing potions and potions that increase survivability have no use during this fight.
Potions and food that increase damage are a necessity.
In master mode worlds, the Hexxed Branch mount is useful to move quickly, as it very quickly reaches its max speed even while in the air. Because it cannot fly or double jump, using it without wings is not a good idea.
The Gelatinous Pillion allows the player to quickly descend during the fight, making it the best mount to use alongside Wings.
The Witch's Broom(Desktop, Console and Mobile versions), and the Shrimpy Truffle(Desktop, Console and Mobile versions) are viable substitutes for wings and other forms of mobility accessories, which should be abandoned if used.
The latter is most useful if it is raining, or if there are water/honey bubbles set up within the arena.
↑ 1.01.1Information taken from the Desktop1.4.4.9 source code, AI_120_HallowBoss() in Terraria.NPC.cs, ScaleStats_ApplyMultiplayerStats() in Terraria.NPC.cs, and GetAttackDamage_ScaledByStrength() in Terraria.NPC.cs.
↑ 2.02.1Information taken from the Desktop1.4.4.9 source code, AI_120_HallowBoss() in Terraria.NPC.cs. The relevant part is the switch(this.ai[0]){ case 9: } code block.
↑ 3.03.1Information taken from the Desktop1.4.4.9 source code, AI_120_HallowBoss() in Terraria.NPC.cs. Relevant code blocks for attacks: Prismatic Bolt 1: switch(this.ai[0]){ case 2: }; Prismatic Bolt 2: switch(this.ai[0]){ case 16: }
↑ 4.04.1Information taken from the Desktop1.4.4.9 source code, AI_120_HallowBoss() in Terraria.NPC.cs. Relevant part for attack is the switch(this.ai[0]){ case 6: } code block.
↑ 5.05.1Information taken from the Desktop1.4.4.9 source code, AI_120_HallowBoss() in Terraria.NPC.cs. Relevant part for attack is the switch(this.ai[0]){ case 5: } code block.
↑ 6.06.16.2Information taken from the Desktop1.4.4.9 source code, AI_120_HallowBoss() in Terraria.NPC.cs. Relevant code blocks for attacks: Ethereal Lance 1: switch(this.ai[0]){ case 4: }; Ethereal Lance 2: switch(this.ai[0]){ case 7: }; Ethereal Lance 3: switch(this.ai[0]){ case 11: }
↑Information taken from the Desktop1.4.4.9 source code, RegisterBoss_HallowBoss() in Terraria.GameContent.ItemDropRules.ItemDropDatabase.cs.