Orion has no timer, i've always wondered if we've endless time to kill him. But today, when fighting with less ppl, he just disappeared at 30% health, so i'm 100% sure now that he has an invisible timer, just not shown^^
Not a bug. He can't be endless, Hydra is coming up. So if you aren't in a spam group, kalibak and steppenwolf fight takes longer. If it takes long enough, Orion comes out and helps defeat them. If you do beat them fast enough, he comes out to take the source fragments from "you". There is no timer, you have till he leaves to beat him. He leaves when he does because hydra is about to start.
