This spell utilizes wild magic in a protective manner, reflecting major wild surges away from the warded creature and back to the caster whose spell created the surge. It does not affect side effects of major wild surges that do not directly affect the creature (such as raising a spell's DC). If the surge would be reflected back to the target, the surge is simply nullified.
The spell lasts until its duration expires, or until it reflects or nullifies 2d4 major wild surges.
Multiple castings of this spell do not stack. This spell cannot prevent any major wild surge that occurs when it is cast, but such a surge does not end the spell early. The target cannot choose to drop this protection (if the major surge turns out to be beneficial, for instance).
Arcane material component: A warped silver mirror.