Kanko Torinaga, the Redeemed

Whenever Kanko Torinaga attacks, it becomes black until end of turn.
While Kanko Torinaga is white, it has Bushido 2 and first strike.
While Kanko Torinaga is black, it has Bushido 2 and deathtouch.
"I cannot bring you back, dear sister, but I will punish those fanatics who took you from me."