Tasha, Coven Superior

Coven - At the beginning of your upkeep, if you
control three or more creatures with different
powers, you may scry 1 and draw a card.
{x}{u/b}{t}:Exile target instant or sorcery from target
player's graveyard, you may cast that spell with
mana value less than or equal to X.
Spells that you cast from exile have casualty 2.