KO Gemstone Crab The new Gemstone Crab is an AFK-friendly combat training method. It only moves once every 10 minutes, and if you're among the top 16 damage dealers, you can mine it for 3 random gems. Best of all — the crab deals no damage!    Requirements Children of the Sun quest completed (Script can do this quest) To mine gems and bank, you must have the Quetzel transport system unlocked (Twilight's Promise quest) To use Dharok's method, ensur