Yûl'Rok Tyrant Volcano

(cannot be countered or exiled)
Indestructible, Mentor, Trample
it has +1/+1 equal to the number
of volcanoes you control and if you
control at least three volcanoes you
have double initiation and threat
all creatures you control on mentor
then we +1/+1 equal to the number
of volcanoes you control