Last Prism

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Desktop/Console/Mobile-Only Content: This information applies only to the Desktop, Console, and Mobile versions of Terraria.
Last Prism
  • Last Prism item sprite
Stack digit 1.png
Damage100 (Magic)
Knockback0.25 (Extremely weak)
Critical chance4%
Use time10 (Very fast)
Tooltip'Fire a lifeform disintegration rainbow'
RarityRarity level: 10
Sell10 GC
Research1 required
Projectiles created
  • Last Prism Laser
    Last Prism Laser
  • Last Prism
    Last Prism
Obtained from Obtained from Obtained from
Classic mode icon.png Classic
Expert mode icon.png Expert
Master mode icon.png Master
Moon Lord(Desktop, Console and Mobile versions)Moon Lord's Head.gifMoon Lord(Desktop, Console and Mobile versions)122.2%
Treasure Bag(Desktop, Console and Mobile versions)
(Moon Lord)
Treasure Bag (Moon Lord)Treasure Bag
(Moon Lord)
The Last Prism being used against a group of Target Dummies.

The Last Prism is a Hardmode, post-Moon Lord magic weapon that fires several beams of light that converge into one focused beam as it charges, dealing massive damage. It has one of the highest base DPS in the game at the cost of rapidly consuming mana. It has a 2/9 (22.22%) chance of dropping from the Moon Lord.

The Last Prism projects six rainbow-colored beams that deal individual damage as they begin to rotate, then spin faster as they converge into one concentrated beam. This process takes exactly 3.365 seconds, with each beam continuing to deal the weapon's full base damage. The fully-converged beam deals three times the weapon's base damage, or 300 damage per hit. Unlike most piercing attacks, the weapon hits 12 times per second (every 5 game ticks[1]). The mana cost will increase exponentially as the beam converges.

Due to its high mana cost (72 mana per second; 12 mana 6 times per second when fully charged), players will struggle to maintain the beam for more than 5-6 seconds. Usage of the Mana Flower, Magic Cuffs, Nebula armor, and a large supply of Super Mana Potions with the Last Prism is recommended.

Its best modifier is Mythical.


  • The Last Prism consumes significantly less mana while unfocused. Consider firing in short holds if there is no need for the concentrated beam, such as when facing large enemies or groups.
  • While held, the Last Prism's aim works in a sweeping motion, so turn rate is reduced.
  • Due to the rapid hit of the converged beam, it is possible for the lifesteal set bonus from the Spectre Hood to not produce a healing orb when using the converged beam to attack enemies.
  • The beam will stop firing after 1 minute of continuous use, but will continue to drain mana.
  • The beam may partly clip through blocks visually, although it cannot pass through blocks. Due to its hitbox, it is possible for the beam to deal damage to targets directly behind a 2-tile thick wall, but this feature has little practical usage.



  • The Last Prism beam has the same sound effect as the Phaseblade/Phasesaber.
  • This item could be considered an upgrade to the Charged Blaster Cannon, as both have a high-DPS beam.
  • The Last Prism used to have the highest overall DPS of any weapon in Terraria, but it has since been surpassed by the Zenith.
    • However, it still possesses the highest magic DPS in the game, capable of reaching up to 15,000 DPS against a single Target Dummy.
  • The beams change to various different colors if the character's name is one of the following names listed below, which are the names of various testers for Terraria. Having the name "Random" will also randomize the colors. The same effect is true of the drops from the Empress of Light.
List of names
Name Color(s)
Acamaeda Green/Yellow/Orange
Aeroblop Green/Yellow
Alchemystics Pink/Blue/Light Blue
Antithesis Purple/Blue
Arkhalis Pink/Blue
Aurora3500 Green/Dark Green
Bame Blue/Yellow
Cenx Green/Pink
Criddle Orange/Red/Pink/Purple
Crowno Purple/Blue
Darkhalis Pink/Blue
Darthkitten White/Red
darthmorf Dark Red/Black
Devalaous Purple/Blue/Light Blue
Discipile Cyan/Black
Doylee Red/Pink/Blue
Ghostar White/Blue
Grox The Great Light Blue/Green
Jaxrud Yellow/Green
Jenosis Purple/Blue/Light Blue
Kazzymodus Green
Khaios Dark Green/Black
Lazure Light Blue/Blue/Pink
Leinfors Purple/Blue
Loki Red/Black
ManaUser Blue/Light Blue/Green
Mid Dark Red/Pink/Purple
Nike Leon Orange/Red
Nimbus Purple/Black
ppowersteef Blue/Black
RBrandon Red/Black
Redigit Blue
Serenity Pink/White
Sigma Yellow/Orange/Red
Suweeka Blue/Light Blue/Green
teiull Purple/Blue/Green/Yellow
Tsuki Pink
Unit One Blue/Light Blue/Green/Yellow
Vulpes Inculta Purple/Blue
W1K Purple/Blue
Waze3174 Blue/Light Blue/Green/Yellow
Xman101 Green/White
Yoraiz0r Pink
Zoomo Purple


  • Desktop 1.4.4:
    • Now has a token knockback value, allowing access to better modifiers.
    • Added unique beam colors if the player's name is Bame, Nimbus or teiull.
  • Desktop Added unique beam colors if the player's name is Discipile.
  • Desktop Added unique beam colors if the player's name is Cenx, Crowno, Lazure, Jaxrud, Acamaeda, Alchemystics, Antithesis, Aurora3500, Criddle, Darthkitten, darthmorf, Jenosis, Kazzymodus, Khaios, Loki, ManaUser, Mid, ppowersteef, RBrandon, Redigit, Serenity, Sigma, Unit One, Vulpes Inculta, Waze3174, Xman101 or Zoomo.
  • Desktop Added unique beam colors if the player's name is Grox the Great.
  • Desktop Added unique beam colors if the player's name is Suweeka, W1K or Random.
  • Desktop Added unique beam colors if the player's name is Nike Leon.


  1. A tick is a time unit countable by the software. Most of Terraria's updating logic happens every tick. A tick has the length of 1/60th of a second, hence there are 60 ticks in a second and 3600 ticks in a minute.