Goopy Fella, Carbon Copy Champ

When this creature attacks, choose one that hasn't been chosen—
•Pencils Down—Put a deathtouch counter on this creature, it's an Assassin in addition to its other types
•Be Water, Friend—Put a vigilance counter on this creature, it's a Monk in addition to its other types
•Crush Your Enemies {line}Put a trample counter on this creature, it's a Warrior in addition to
its other types