Herald of Ilharg is a rare Creature — Boar Beast card from Ravnica: Clue Edition (CLU), collector number 34. Current market price: $3.26, TCGplayer market prices via Scryfall.
Trample Whenever you cast a creature spell, put two +1/+1 counters on this creature. If that spell has mana value 5 or greater, this creature deals damage equal to the number of counters on it to each opponent.