Aetherflux Reservoir (Retro) [The Brothers' War Retro Artifacts] Kraken with the obvious exception of

with the obvious exception of failure

if one or more of them entered from a graveyard or was cast from a graveyard

Sliver spells can't be countered

create Marit Lage

[the card types are Artifacts

Aetherflux Reservoir (Retro) [The Brothers' War Retro Artifacts] Kraken with the obvious exception ofSet: 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. While most power is used for ordinary, everyday tasks, one shouldn't underestimate its potential for the extraordinary.