Legendary Planeswalker — Ugin
Colorless spells you cast cost
less to cast.
+1 : Exile the top card of your library face down and look at it. Create a 2/2 colorless Spirit creature token. When that token leaves the battlefield, put the exiled card into your hand.
−3 : Destroy target permanent that's one or more colors.
If the Spirit leaves the battlefield for any reason, you’ll put the exiled card into your hand, even if Ugin left the battlefield before that happened.