Death

As an additional cost to cast this spell sacrifice a non-token creature.

At the beginning of each end step, if Death is in your graveyard and another non-token creature died this turn, return death to the battlefield under your control.

When another non-token creature dies, it's owner may exile it with an eon counter on it, it gains "Remove all eon counters from this card: It's owner may cast a copy of this card.(The copy becomes a token.)"