Aetherflux Reservoir (Retro Schematic) (Serialized) [The Brothers' War Retro Artifacts] Halfling Citizen {3}{W}{W}: Creatures you control get

{3}{W}{W}: Creatures you control get +1/+1 and gain vigilance until end of turn

Put all Goblin creature cards with mana value 5 or less from among them onto the battlefield and the rest on the bottom of your library in a random order

If that creature is legendary

flip a coin until you lose a flip

For each of those cards

Aetherflux Reservoir (Retro Schematic) (Serialized) [The Brothers' War Retro Artifacts] Halfling Citizen {3}{W}{W}: Creatures you control getSet: The Brothers' War Retro Artifacts Type: Artifact Rarity: Mythic 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. "These estimates are conservative. Its true capacity may be far, far greater." Research notes, signature illegible