Three-Headed Giant

Vigilance, deathtouch, haste
Three-Headed Giant can't be blocked by creatures with power 2 or less.
Combat damage that would be dealt by creatures you control can't be Prevented.
Whenever Three-Headed Giant deals combat damage to an opponent, it deals that much damage to target planeswalker that player controls.
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"You're a knight of the Round Table?" In that case I shall have to kill you."