Lila, Heart of Gold

First Strike
Lila, Heart of Gold is unblockable.Whenever
it deals combat damage to a player, exile the
top card of their library. Until end of turn,
you may cast it, and spend mana as though it
were any type to cast it. If you don't, instead
create a Treasure token at the beginning of
your end step.
"What was yours, is now mine. Thanks!"