Aetherflux Reservoir (Retro Schematic) (Serialized) [The Brothers' War Retro Artifacts] Core Set 2020 Kalonian Hydra enters the battlefield

Kalonian Hydra enters the battlefield with four +1/+1 counters on it

Set: Duel Decks: Zendikar vs

Soul of Elements

he knew at last the true nature of the C'tan

Aetherflux Reservoir (Retro Schematic) (Serialized) [The Brothers' War Retro Artifacts] Core Set 2020 Kalonian Hydra enters the battlefieldSet: 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