most ppl hold onto it for too long and it goes to waste, eliminating the point of having intellect on armor :3 self rez is good for end-game stuff, I don't see a reason to use it for normal stuff though, like the strike playlist or normal non Trials crucible

You can get pretty creative with self rez I like to suicide into the enemies heavy and maybe take one guy out, then revive with purifier robes, fly up high, and burn them all to death with firebolts. Usually works out I could write an essay about all the funky stuff you can do with self rez in many parts of the game.