Sheamus, Ire Wraith Caster

Haste, hexproof, lifelink
{r}{g}{w}, {t}: Create a 2/2 red and green Wolf Wraith creature token with double strike.
If 7 or more Wolf Wraith creature token are under your control at any time you may transform Sheamus, Ire Wraith Caster.
In the call of the night, if you don't hear the wail of his wolves, the end of your time comes near.