Black Powder Orchid

This artifact enters with seven charge counters.
At the beginning of your end step, remove a charge counter from this artifact. Then if it has none left, discard your hand, exile this artifact, put a sickness counter on each creature without one, and those creatures gain "At the beginning
of your upkeep, you lose 2 life, then sacrifice this creature unless you discard a card." Return this artifact to the battlefield