Sharpening Stone is a passive item in TBOI Otherside, a mod for The Binding of Isaac.

On use grants +x0.1 damage multiplier, limited at x2.0
When playing as The Lost the multiplier is limited at x1.2

If Isaac gets damaged the multiplier is reset

This item can only be acquired by using Weird Mirror on The Small Rock.

The following tags are applied to this item:

• Download TBOI Otherside from the Steam Workshop.