Malkruk of Maelstrom

0: Whenever you cast your next spell, put X loyalty counters on Malkruk of Maelstrom where X is the number of spells cast this turn.
-XX: You may cast target spell from your graveyard with converted mana cost X without paying its mana cost.
-20: You get an emblem with "Spells you cast from your hand have cascade." and "Whenever you cast a spell, add two mana in any combination of colors."