Undying Mind is the Nightfall again and you know what that means: Fatebringer farming! This thread is dedicated to coming up with the best possible method considering the current modifiers. The best thing I can come up with right now is using a Lightning or Pulse grenade to kill yourself on the first tick, and the boss on the second. I think Lightning grenade might be a bit risky due to it's high damage, and pulse grenade might not be strong enough to kill you in one tick (maybe with arc burn, but not sure). I think Zhalo will probably be the best way to lower his health. Post ideas in the comments, let's get this party started.