Reinterpret (Extended Art) [Commander 2021] Mountain Forest if it isn't a mana

if it isn't a mana ability

Set: Revised Edition Type: Instant Rarity: Common Cost: {R} Choose one —

Sacrifice Magus of the Mirror: Exchange life totals with target opponent

Set: Guilds of Ravnica Prerelease Promos Type: Sorcery Rarity: Rare Cost: {3}{B}{B} Choose a creature card with mana value 1 in your graveyard

Set: Fourth Edition (Foreign Black Border) Type: Creature — Goblin Warrior Rarity: Uncommon Cost: {R} {R}: Goblin Balloon Brigade gains flying until end of turn

Reinterpret (Extended Art) [Commander 2021] Mountain Forest if it isn't a manaSet: Commander 2021 Type: Instant Rarity: Rare Cost: {2}{U}{R} Counter target spell. You may cast a spell with an equal or lesser mana value from your hand without paying its mana cost.