I've done Oryx hard 3x, 2x regular and 1x no knight. The no knight strategy is stupidly easier. Just have 2 titans as permanent top ppl using blessing bubbles to get orges to like 10-25%. Then after staggering oryx every1 just head shots their ogre and gets orb. No deaths, no damage taken, stupidly easy. Worst case use a warlock self rezzer for running the relic incase he dies trying to grab shield.