The Knights Who Say Ni!

Reach, trample, indestructible, hexproof,
menace, lifelink, haste
Whenever a creature you control attacks, you
may say "Ni!" to the defending player. If you do,
the attacking creature becomes a white 20/20
legendary creature token with "this creature can't
be blocked" called The Knight who says "Ecky
Ecky Ecky P'Tang Zoo Boing!"