Aron, Benalia's Ruin is a uncommon Legendary Creature — Phyrexian Human card from Dominaria United (DMU), collector number 193. Current market price: $0.24 (foil $0.12), TCGplayer market prices via Scryfall.
Menace (This creature can't be blocked except by two or more creatures.) {W}{B}, {T}, Sacrifice another creature: Put a +1/+1 counter on each creature you control.