The Herald of Numot is a rare Legendary Creature — Dragon card from Unknown Event (UNK), collector number RZ03. Current market price: $5.00, TCGplayer market prices via Scryfall.
Double strike, vigilance, haste Whenever The Herald of Numot deals combat damage to a player, create a Numot, the Devastator token card and shuffle it into your library. Numot, the Devastators you control have vigilance and haste, and the "legend rule" doesn't apply to them.