Skyr, Awoken Cataclysm

Flying, haste
Spells you cast from exile can't be countered.
When Skyr, Awoken Cataclysm deals combat
damage to a player, create a Treasure token.
Artifact tokens you control have "{t}, Sacrifice
this artifact: Exile the top card of your library.
Until the end of your next turn, you may play
that card."