The Abominationn Voodoo Doll is a craftable item. On use, it summons the Abominationn NPC. If the player throws the Abominationn Voodoo Doll into lava, the Mutant boss will spawn, as well as killing the Abominationn if present.
While the Abominationn Voodoo Doll has a rarity of 11, it does not use the standard purple color for its item name. Instead, it alternates between two custom colors (#FF3399 and #0033FF).
Unlike other voodoo dolls (Guide Voodoo Doll/Clothier Voodoo Doll), the Abominationn Voodoo Doll is NOT an accessory, hence you can make and have more than 1 in your inventory.