Wetstone is a trinket in Fiend Folio, a mod for The Binding of Isaac.

Upon entering an uncleared room, Isaac spawns 0-6 bubbles that block projectiles and deal damage to enemies.

Size of the bubbles is random and the damage scales off of it. 4 different sizes exist, dealing 2.62, 3.5, 7, and 10.5 damage.

Taking damage spawns 1-10 bubbles.

The following special synergies and interactions for Wetstone have been documented.

* Note that not all possible synergies and interactions are listed here.

• Check out the trinket description on the mod's external Wiki.
• Download Fiend Folio from the Steam Workshop.