What would it take to even kill a sprite? I mean, davesprite had his wing ripped off and a major stab wound, and then eventually got better, while the only account of sprites dying was when all the trolls sprites were killed with their planets by bec noir

I mean, unstable Sprites can also explode. Davesprite died when LOWAS blew up too, so it seems explosions are a reliable way of killing a Sprite. I would imagine too chopping one in half or decapitating one would easily kill them too. They just seem a tad more resilient.