Thorismund Sundhaussen

Whenever Thorismund Sundhaussen would be
sent to a graveyard from anywhere, exile it instead.
Return it to the battlefield tapped, under its
owner's control at the beginning of your next
upkeep.
Whenever another creature dies, you may lose
2 life and pay {1}{w/b}{w/b}, if you do, search
your library for a Nicol Bolas planeswalker
and put it on the battlefield under your control.