Ephemerate [Mystery Booster] Specter if it isn't a mana

if it isn't a mana ability

Exile Gonti's Aether Heart: Take an extra turn after this one

Set: Alpha Edition Type: Enchantment Rarity: Rare Cost: {2}{R} Whenever a player taps a land for mana

Nicol Bolas Type: Legendary Planeswalker — Ajani Rarity: Mythic Cost: {2}{R}{W} +1: Target permanent doesn't untap during its controller's next untap step

Enchanted land has "At the beginning of your upkeep

Ephemerate [Mystery Booster] Specter if it isn't a manaSet: Mystery Booster Type: Instant Rarity: Common Cost: {W} Exile target creature you control, then return it to the battlefield under its owner's control. Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)