Chained to the Realm

Until end of turn, permanents you control cannot leave the battlefield. (They cannot be destroyed, exiled, sacrificed, etc.)
"In the distance, he saw it. At long last, the gateway finally opened. It's prismatic light beamed across the horizon, barely gracing Dormu's face. "It worked," he thought, but it didn't matter. He was trapped. Soon, the gate would close, and he would be alone in the dark world of his own creat