Origami Koi

{u}: Origami Koi becomes a 3/3 Fish creature until end of turn. It's still an artifact.
{t}: Put a puzzle counter on Origami Koi. Activate this ability only if Origami Koi is a creature.
{x}{u}, Remove X puzzle counters from Origami Koi: Whenever Origami Koi deals combat damage to a player this turn, draw two times X cards.