Aetherflux Reservoir [Mystery Booster] Worldwake Spend this mana only to

Spend this mana only to cast a Sliver spell

Sacrifice Mausoleum Wanderer: Counter target instant or sorcery spell unless its controller pays {X}

Set: From the Vault: Legends Type: Legendary Creature — Hydra Avatar Rarity: Mythic Cost: {W}{W}{U}{U}{B}{B}{R}{R}{G}{G} Protection from everything

Set: Guilds of Ravnica Prerelease Promos Type: Legendary Creature — Dragon Wizard Rarity: Rare Cost: {U}{U}{U}{R}{R}{R} This spell can't be countered

Set: Limited Edition Alpha Type: Creature — Giant Rarity: Uncommon Cost: {2}{R}{R} {T}: Target creature you control with toughness less than Stone Giant's power gains flying until end of turn

Aetherflux Reservoir [Mystery Booster] Worldwake Spend this mana only toSet: Mystery Booster Type: Artifact Rarity: Rare Cost: {4} Whenever you cast a spell, you gain 1 life for each spell you've cast this turn. Pay 50 life: Aetherflux Reservoir deals 50 damage to any target. While most power is used for ordinary, everyday tasks, one shouldn't underestimate its potential for the extraordinary.