Ring of Equivalent Exchange

Twice per day, the wielder of this item may
attempt to remove a positive magical effect on
another creature, as the spell Dispel Magic (CL 6)
If successful, the effect is dispelled or suppressed
and the wielder receives a negative status effect
(no save).
"See!? This is why we can't have nice things!"
-Roanna Tryn, Mage of the Circle