Lavabrink Floodgates 53 (Commander 2020)

{T}: Add {R}{R}. At the beginning of each player's upkeep, that player may put a doom counter on this artifact or remove a doom counter from it. Then if it has three or more doom counters on it, sacrifice this artifact. When you do, it deals 6 damage to each creature.

NM - $1.50
LP - $1.50
MP - $1.50
HP - $1.50
DMG - $1.50