The Defect, Spire Slayer

At the beginning of your end step, choose one for each spell you’ve cast this turn—
Cracked core—Put a charge counter on The Defect. Deal one damage to any target.
Creative AI—Choose a random card in your graveyard. If it’s a sorcery, return it to your hand.
Multi-Cast—Remove X charge counters from The Defect. Copy the next spell you cast if its mana value is X or less. Copy it X times.