Calamity Mod Wiki
True Tyrant's Ultisword
  • True Tyrant's Ultisword.png
Stack digit 1.png
Damage112 Melee
Knockback7.5 (Very Strong)
Critical chance4%
Use time17 Very Fast
TooltipFires blazing, hyper, and sunlight blades
Gives the player the tyrant's fury buff on enemy hits
This buff increases melee damage by 30% and melee crit chance by 10%
Grants BuffTyrant's FuryTyrant's Fury
Buff duration5 seconds
Buff tooltip30% increased melee damage and 10% increased melee crit chance
RarityRarity Level: 12
Sell 24 Gold Coin.png

The True Tyrant's Ultisword being repeatedly swung, with Sunlight blades (non-homing) hitting a Target Dummy, while Blazing Phantom and Hyper blades home in on a Super Dummy.

The True Tyrant's Ultisword is a craftable post-Moon Lord broadsword that autoswings. On each swing it fires one of three projectiles, chosen at random. Each projectile can pass through walls and hit 5 times before dissipating, and their piercing abilities vary as a result of their different damage-dealing speeds. None of the projectiles fired by the Ultisword can home in on enemies who are behind walls, nor can they chase enemies if inside a wall. If not chasing a foe, the projectiles will gradually slow down and stop similar to those fired by the Death Sickle.

Striking an enemy with the Ultisword itself has a 50% chance to grant the Tyrant's Fury buff to the player, increasing melee damage by 30% and melee critical strike chance by 10% for 5 seconds. The blade also inflicts Poisoned and Venom debuffs for 5 seconds and 2.5 seconds respectively.

On enemies, these combined debuffs cause the target to be unable to regenerate health and lose 106 health per second. In Revengeance and Death Mode, they will also lose 20% damage reduction.

Its best modifier is Legendary.

Projectile Types[]

Type Description Debuffs
Blazing Phantom Blade Blazing Phantom Blade Slightly homes into enemies. On Fire!On Fire! (3 seconds)
Hyper Blade Hyper Blade Dramatically homes into enemies.
Has a hit cooldown of 4.
Cursed InfernoCursed Inferno (2 seconds)
Sunlight Blade Sunlight Blade Does not home into enemies.
Has a hit cooldown of 3.
Holy FlamesHoly Flames (3 seconds)



Crafting Station
Demon AltarDemon Altar
Crimson AltarCrimson Altar
Tyrant Yharim's UltiswordTyrant Yharim's Ultisword1
Core of CalamityCore of Calamity1
Uelibloom BarUelibloom Bar15
True Tyrant's UltiswordTrue Tyrant's Ultisword1


  • The term “Ultisword” in the weapon’s name is a portmanteau, combining “Ultimate” and “Sword”.
  • Yharim, referred to as the Tyrant in this weapon's name, is a significant figure in the Calamity Mod's lore.