Mana Switch
Buyback {2} (You may pay an additional {2} as you cast this
spell. If you do, put this card into your hand as it
resolves.)
Cascade (When you cast this spell, exile cards from the top of
your library until you exile a nonland card whose converted mana
cost is less than this spell's converted mana cost. You may cast
that card without paying its mana cost. Then put all cards exiled
this way that weren't cast on the bottom of your library in a
random order.)
Card Comments