Rosnakht, Heir of Rohgahh is a rare Legendary Creature — Kobold Warrior card from Dominaria United Commander (DMC), collector number 75. Current market price: $0.45 (foil $0.53), TCGplayer market prices via Scryfall.
Battle cry (Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn.) Heroic — Whenever you cast a spell that targets Rosnakht, create a 0/1 red Kobold creature token named Kobolds of Kher Keep.