Mirari's WakeCreatures you control get +1 +1. Whenever you tap a land for mana, add one mana of any type that land produced.

you may pay {0} rather than pay this spell's mana cost

Activate only if you control a Swamp or a Mountain

If you cast a spell this way

you don't lose this mana as steps and phases end

If the discarded card was an artifact card

: Reveal cards from the top of your library until you reveal a basic land card

Legacy Reforged's power and toughness are each equal to the greatest mana value among artifacts you control

When you control no Islands

(If a card has multiple permanent types

Mutate {U/B} (If you cast this spell for its mutate cost

Put that card into your hand and all other cards revealed this way into your graveyard

+1: Target player mills two cards