Solar burn on = everyone who has a Gjallarhorn and doesn't equip it during Nightfall is just slowing down their whole team. For arc burn Fatebringer or Fang of Ir Yut are both better than Necrogarbage. Sure if you wanna just screw around and waste time, use Necro. EDIT, I see you don't have Gjallarhorn, now I see why you made this stupid post.