Make a Spellcast Roll against a target within Close range. On a success, roll a number of d20s equal to your Spellcast trait. The target must make a reaction roll with a Difficulty equal to your highest result. On a success, the target must mark a Stress but isn't banished. Once per rest on a failure, they are banished from this realm.
When the PCs roll with Fear, the Difficulty gains a -1 penalty and the target makes another reaction roll. On a success, they return from banishment.