Icyghoul Demon of Altraz

Icyghoul Demon of Altraz cost {1} less to cast for each snow creature you control.
{s}{s}, {t}; Place a Frostbite Counter on target creature.
If Icyghoul Demon of Altraz gets untapped during any untap step, create a 1/1 Blue and Black Snow Creature Ghoul Token with a Frostbite Counter.