Lazotep Sliver is a rare Creature — Zombie Sliver card from Commander Masters (CMM), collector number 764. Current market price: $6.84 (foil $8.10), TCGplayer market prices via Scryfall.
Sliver creatures you control have afflict 2. (Whenever a creature with afflict 2 becomes blocked, defending player loses 2 life.) Whenever a nontoken Sliver you control dies, amass Slivers 2. (Put two +1/+1 counters on an Army you control. It's also a Sliver. If you don't control an Army, create a 0/0 black Sliver Army creature token first.)