Tullio, Monkey King

Tullio, Monkey King enters the battlefield with
X banana counters on it.
Remove a banana counter: each creature card in
your hand gain ninjutsu equal to their mana cost
until the end of turn
Remove 3 banana counters: all creatures become
monkeys in addition to their types.
Monkey creatures you don't control are goaded.
"OOK-OOK! EEEK-AAK-EEK!"