Glacial Floodplain

Rulings

5 official rulings, in the order Wizards published them.

• 2021-02-05

  Snow is a supertype, not a card type. It has no rules meaning or function by itself, but spells and abilities may refer to it.

• 2021-02-05

  The S symbol is a generic mana symbol. It represents a cost that can be paid by one mana that was produced by a snow source. That mana can be any color or colorless.

• 2021-02-05

  Some cards have additional effects for each S 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.

• 2021-02-05

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

• 2021-02-05

  Snow isn't a type of mana. If an effect says you may spend mana as though it were any type, you can't pay for S using mana that wasn't produced by a snow source.

Rulings are Wizards of the Coast's own, mirrored from Scryfall and refreshed nightly.

In the 99

Every deck whose current list includes Glacial Floodplain, whatever its commander.