Sjelldenran, Latismu Lich

Deathtouch, Lifelink, Ward Mill 20
You may not cast instant or sorcery spells from your hand on your turn.
Whenever a permanent you control leaves the battlefield choose a spell from
your hand it gains flash and costs {3} less to cast until the beginning of your
next upkeep
{w/b}{u/b}{t} Return each permanent that you control that left the battlefield
this turn to your hand.