Aetherflux Reservoir [Kaladesh Prerelease Promos] SM100 When a face-up monster you

When a face-up monster you control is targeted for an attack: You can send 1 Spell/Trap card you control to the Graveyard

destroy all face-up monsters on your opponent's side of the field with an ATK equal to or less than the ATK of the sent monster

you can activate this effect to remove from play the top card of your Deck and gave this card 500 ATK until the End Phase

Set: Sword & Shield: Brilliant Stars Type: Colorless Rarity: Secret Rare Retreat cost: Colorless

you can Tribute 1 monster

Aetherflux Reservoir [Kaladesh Prerelease Promos] SM100 When a face-up monster youSet: Kaladesh Prerelease Promos 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.