Kenshiro, Wasteland Savior

Viailance, Firststrike
{1}{u}: Tap a nonlegendary creature.
{3}{r}: Tap target creature that has less base toughness than Kenshiro, Wasteland Savior.
at the beginning of an opponent's upkeep, any creature tapped by Kenshiro, Wasteland Savior is destroyed.
Nil-Thought Rebirth—{7}: transform into Muso Tensei Kenshiro.