Meena, Born of Power

Meena costs {1} less to cast for each card in your hand.
Cascade-tick (When you cast this spell, exile cards from the top of your library until you exile a card with converted mana cost one less than this spell's. You may cast it without paying its mana cost. Put the remaining cards on the bottom of your library in a random order.)
If you would cascade, instead cascade-tick.