Lavabrink Floodgates [Commander 2020]

Set: Commander 2020 Type: Artifact Rarity: Rare Cost: {3}{R} {T}: Add {R}{R}.At the beginning of each player's upkeep, that player may put a doom counter on Lavabrink Floodgates or remove a doom counter from it. Then if it has three or more doom counters on it, sacrifice Lavabrink Floodgates. When you do, it deals 6 damage to each creature.