This spell utilizes wild magic in a protective manner, cancelling the effects of major wild surges on the warded creature. It does not prevent side effects of major wild surges that do not directly affect the creature (such as raising a spell's DC).
The spell lasts until its duration expires, or until it prevents a single spell's major wild surge(s) from affecting the warded creature.
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.