"We shall meet bitter cold, if not worse, before we come down on the other side. It will not help us to keep so secret that we are frozen to death."
—Boromir

Tales of Middle-earth Commander

Mouth of Ronom

{T}: Add {C}.
{4}{S}, {T}, Sacrifice Redhorn Pass: It deals 4 damage to target creature.

{T}: Add {C}.
{4}{S}, {T}, Sacrifice Mouth of Ronom: It deals 4 damage to target creature. ({S} can be paid with one mana from a snow source.)

The List

Coldsnap

{T}: Add {1} to your mana pool.
{4}{S}, {T}, Sacrifice Mouth of Ronom: Mouth of Ronom deals 4 damage to target creature. ({S} can be paid with one mana from a snow permanent.)