Aetherflux Reservoir [Mystery Booster] 120 you may begin the game

you may begin the game with it on the battlefield

Set: Kaladesh Inventions Type: Artifact Creature — Construct Rarity: Mythic Cost: {2} {T}: Put a +1/+1 counter on each artifact creature you control

destroy that creature

Mana cost includes color

Set: Urza's Destiny Promos Type: Creature — Human Cleric Rarity: Rare Cost: {2}{W}{W} When False Prophet dies

Aetherflux Reservoir [Mystery Booster] 120 you may begin the gameSet: 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.