Eternal Skylord is a uncommon Creature — Zombie Wizard card from War of the Spark (WAR), collector number 49. Current market price: $0.20 (foil $3.95), TCGplayer market prices via Scryfall.
When this creature enters, amass Zombies 2. (Put two +1/+1 counters 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.) Zombie tokens you control have flying.