This simple time-worn golden band’s surface is engraved with various interlaced arcane runes, though several have worn off or been scuffed beyond recognition.
When the wearer of a ring of forgetfulness would otherwise successfully cast a 1st- or 2nd-level arcane spell at CL 5th or below, there is a 25% chance that the memory of the spell is stolen by the ring of forgetfulness (resulting in spell failure). This spell failure check occurs after all other spell failure checks for the cast have been resolved.
A “stolen” spell is stored within a ring of forgetfulness where it remains as a single charged use of that spell, but with the effects of the Enlarge Spell, Extend Spell, and Maximize Spell metamagic feats applied to it (as applicable). The wearer of a ring of forgetfulness cannot voluntarily expend a spell to create a charge—it must be as the random effect caused by the magic item.
A minor ring of forgetfulness can store up to two charges, a medium ring of forgetfulness can store up to four charges, and a major ring of forgetfulness can store up to six charges.
If a ring of forgetfulness does not have an empty slot available in which to store a “stolen” spell then the spell stealing ability is not in effect and the wearer does not have to make the associated check for spell failure when casting relevant spells.
A single charge contained by a ring of forgetfulness can be expended by the wearer as a full round action.
There is a 75% chance that a found ring of forgetfulness already has 1d2 random 1st- or 2nd-level arcane spell charges stored within it. A ring of forgetfulness feeds off of the memories of spell casters. If a ring of forgetfulness is left without any charges for too long (minor - 2 years, medium - 4 years, major - 6 years) it crumbles into worthless dust.
Requirements Enlarge Spell, Extend Spell, Forge Ring, Maximize Spell, imbue with spell ability; Cost 9,225 gp (minor), 18,450 gp (medium), 27,675 gp (major)