Harbinger of Night

Trample

At the beginning of your upkeep, put a +1/+1 counter on each creature each opponent controls.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

At the beginning of your upkeep, you get a poison counter.

At the beginning of each end step, put a +1/+1 counter on this creature for each creature that died this turn.

At the beginning of your upkeep, if there are three or more creature cards in your graveyard, put a +1/+1 counter on this creature.

At the beginning of your upkeep, this creature deals 1 damage to you.

At the beginning of your upkeep, each player discards a card.