Kolaghan Warmonger is a uncommon Creature — Ogre Warrior card from March of the Machine: The Aftermath (MAT), collector number 67. Current market price: $0.20 (foil $0.25), TCGplayer market prices via Scryfall.
Haste Whenever this creature attacks, look at the top six cards of your library. You may reveal a Dragon card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.