Crimson Dragon

(Transform from Twice Critical Booster)
Vigilance, Trample, Haste, Indestructible
{t}:others creature you control +X/+X, X equal to this card power.
{g/w}{r/g}{r/w}:This creature get X +1/+1 counters, X equal to no. of creature you control
Exiled this creature, create a legendary token name "Wlesh Dragoid" activate this ability when this creature power is more than 15