Vorpix, Redeemed Ronin

Flash, first strike, defender
Vorpix, Redeemed Ronin has bushido X, where
X is the number of Samurai creatures you
control. (When this blocks or becomes blocked, it gets
+X/+X until end of turn.)
Vorpix's power and toughness are each equal to
the number of Samurai creatures you control.