Decomposition | Magic: The Gathering
Formats Decomposition is Legal in
Official Oracle Text for Decomposition
Enchanted creature has "Cumulative upkeep—Pay 1 life." (At the beginning of its controller's upkeep, that player puts an age counter on it, then sacrifices it unless he or she pays its upkeep cost for each age counter on it.)
When enchanted creature dies, its controller loses 2 life.