Kyle, Spector of Justice

+2: Exile target permanent you control. Return it to the battlefield at the beginning of your next end step.
-3: Until end of turn target creature gets +X/+X, where X is the number of plains you control; or -X/-X, where X is the number of swamps you control.
-12: Exile all creatures. At the beginning of your next end step, return all Spirit creatures exiled this way to the battlefield under your control.