Action: Shift Spell

Requirements You are within the affected area of an ongoing spell, or you can physically touch an object or creature under the effects of a spell, and you are holding your conduit

Effect Choose a spellshift and attempt an Arcana check against the DC of the spell (or the spell DC of the spellcaster if the spell does not normally have a DC). The caster immediately becomes aware that you're trying to shift their spell and intuitively knows the potential effects of the shift, but not the result of your skill check. A willing caster can allow you to achieve one degree of success higher than the result of your check. The effects of the check are dependent on the chosen spellshift. Regardless of the result, the spell becomes immune to Shift Spell for 24 hours.