Lazotep Reaver is a common Creature — Zombie Beast card from Starter Commander Decks (SCD), collector number 83. Current market price: $0.19, TCGplayer market prices via Scryfall.
When this creature enters, amass Zombies 1. (Put a +1/+1 counter on an Army you control. It's also a Zombie. If you don't control an Army, create a 0/0 black Zombie Army creature token first.)