Binding of the Wolf

I — Create Fenrir, a legendary 1/2 red and black
Wolf creature token with double strike.
II — Put a +1/+1 counter on a creature you
control named Fenrir, any one opponent may
sacrifice a creature and roll a d20, if the result is
greater than the sacrificed creatures power
remove a lore counter from Binding of the Wolf.
III — Exile a creature you control named Fenrir.