Snow-Covered Island

The Kaldheim set doesn't have any cards with mana costs that include snow mana , but some previous sets do. If an effect says such a spell costs 1 generic mana less to cast, that reduction doesn't apply to any snow mana costs. This is also true for activated abilities that include snow mana in their activation costs and effects that reduce those costs.

In a Limited event (usually Booster Draft or Sealed Deck), you can't add basic snow lands to your card pool as you would other basic lands. You can play with basic snow lands only if you open them in your sealed deck or draft them.

Some cards have additional effects for each snow mana spent to cast them. You can cast these spells even if you don't spend any snow mana to cast them; their additional effects simply won't do anything.