Tundra Fumarole

Fumarola della Tundra (Tundra Fumarole) (it)

Snow Sorcery (CMC 3)
Tundra Fumarole deals 4 damage to target creature or planeswalker. Add for each spent to cast this spell. Until end of turn, you don't lose this mana as steps and phases end. ( is mana from a snow source.)