Mutation is a passive item in Lost and Forgotten, a mod for The Binding of Isaac.

Regular tears fired by Isaac are turned into piercing Brimstone balls which slide along the floor and deal 75% of his damage.

Brimstone balls can hit the same enemy multiple times, which makes the ball smaller and deals less damage.

Mutation can be found in the following item pools:

The following tags are applied to this item:

• Download Lost and Forgotten from the Steam Workshop.