Vampire Flask

The Vampire Flask is a Hardmode, post-Golem potion that activates lifesteal until the buff ends, similar to the effect of the Vampire Knives but is less potent. The Vampire Flask heals the player if the enemy is struck with a melee weapon or melee damage. The buff, called "Lifedrainer" lasts for 3 minutes. The health restored is about 1% of the damage done, but is capped at 10 health per strike if it exceeds 1000 damage. This buff can be OP with ludicrously-fast swinging weapons.

Trivia

 * Nothing to share :P