In Old School RuneScape (OSRS), Dagannoth Rex is one of the most challenging and rewarding bosses in the game. Located in the Dagannoth King's Lair beneath Waterbirth Island, Dagannoth Rex is part of a trio of powerful bosses, each representing one of the elemental forces: Rex (the earth-based king), Prime (the fire-based king), and Supreme (the water-based king). While many players choose to...