Firecracker

The Firecracker is a whip that is dropped from the Wall of Flesh with a 12.5% / chance.

Like other whips, it causes minions to focus on the last-struck enemy. It also applies a visual burning effect to the target.

When a minion attacks an enemy that is afflicted by the whip's burning effect, a small explosion will occur, and the enemy takes three times as much damage from the minion's attack. The explosion does not damage multiple enemies.