Giant in the Ice

Giant in the Ice enters the battlefield with five
ice counters on it.
Whenever you tap Giant in the Ice for mana,
remove an ice counter from it.
When the last ice counter is removed from Giant
in the ice, sacrifice it and create a 8/8 blue Giant creature token with frostbite. (At the beginning of
your upkeep, put a -1/-1 counter on each creature you control with frostbite.)