Terraria Mods Wiki
Ominous Core
  • Ominous Core item sprite
TypePet Summon
TooltipThe rotting mechanism emits surprisingly friendly fumes
Summons a toy variant of the diabolical monstrosity
Grants BuffCalamity's Vanities/Toy XF-Ares (buff)Toy XF-Ares
Buff tooltipHe appears
RarityRarity color violet (Calamity's Vanities).png
Dropped by
Entity Quantity Rate
XF-09 Ares 1 20%
Summons Pet

Toy Ares

Toy Ares (Calamity's Vanities).png

The Ominous Core is a pet summoning item dropped by XF-09 Ares. It summons a miniature Ares to follow the player. If the player's cursor is close enough to any of the pet's arms, the arms will rotate to look at the cursor. If the Infernum Mod's Infernum Mode is enabled, the pet's Gauss Nuke arm is replaced with a Pulse Cannon.


Used in[]

ResultIngredientsCrafting station
Exo GemstoneExo Gemstone
Calamity's Vanities/Draedon's ForgeDraedon's Forge


  • The buff's description is a reference to "The Skeleton Appears" meme.