Curse of Unpredictable Failure

A creature that you target becomes cursed with misfortune. Any attempt to perform a skill check has a chance to fail, typically due to some external factor that could not possibly have been predicted—the target slipped on a wet patch of ground, a squirrel hurls a nut at them at a critical juncture, the target fumbles and drops a vital tool…something random, preferably amusing, but never in and of itself harmful.

However, the upshot of such random occurrences is that while under this curse, any time the target performs a skill check—including attack rolls—if either of the dice rolled come up showing a ten, that ten is treated as a zero.

Curse: This spell is permanent, but can be cancelled by anything that can remove a curse.