Plague Boiler
Plague Boiler
At the beginning of your upkeep, put a plague counter on this artifact.\n{1}{B}{G}: Put a plague counter on this artifact or remove a plague counter from it.\nWhen this artifact has three or more plague counters on it, sacrifice it. If you do, destroy all nonland permanents.
Artifacts Matter Board Wipes Counters Matter Interaction Plague Counters