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Terraria Wiki
Old-gen console versionNintendo 3DS version
Old-gen console/3DS-Only Content: This information applies only to the Old-gen console and 3DS versions of Terraria.
Vial of Blood
  • Vial of Blood item spriteold Vial of Blood item sprite
Stack digit 1.png
Use time20 (Very fast)
TooltipSummons a pet bat
RarityRarity level: 3
Grants Buff
BuffPet BatPet Bat
Buff tooltipOut for blood
Summons Pet
  • Bat Pet
    Bat Pet.png
Obtained from Obtained from Obtained from
Classic mode icon.png Classic
Expert mode icon.png Expert
Master mode icon.png Master
Ivy ChestIvy ChestIvy Chest1??%
Vampire MinerVampire Miner.pngVampire Miner110%

The Vial of Blood is a pet-summoning item that spawns a pet Bat when used. It grants the player the Pet Bat buff that lasts until the player manually cancels the buff or dies. The pet bat flies around the player, dealing 2-4 damage to enemies it happens to touch, and can travel through all blocks. When a player is in a body of water, the bat will fly above it like any other type of bat. When the pet bat gets too far from the player, it can fly back instead of shooting back with clouds behind it.

The Vial of Blood is an uncommon drop from Vampire Miners. It can also rarely be obtained from Gold Chests and Ivy Chests.


  • If this was in a player’s inventory, it was replaced with a Gold Bunny upon updating.[1]


  • The Pet Bat is the only Bat which can travel through blocks.
  • Like the Pet Elfa, it is one of the only pets which deal damage to enemies.