Nihilus, the Timebender

Islandwalk
When Nihilus, the Timebender enters the battlefield, you may exile target nonland
permanent. Return that card to the battlefield
under its owner's control at the beginning of the
next end step.
Whenever Nihilus, the Timebender deals combat damage to a player, you may exile target
permanent. Return it to the battlefield under its
owner's control at the beginning of the next end
step.