Tozawa, The White Death

Tozawa, The White Death has Bushido X, where
X equal to the number of soul counters on
Tozawa
Trample, Bushido X (When this creature blocks or becomes blocked, it gets +X/+X)
Whenever Tozawa attacks alone you may pay {2}{w} and up to one target creature must block
Tozawa.
Whenever Tozawa destroys an enemy creature
put a soul counter on Tozawa.