Kind of. Long story short, I was killed once and a friend brought me back to life using the power of a temporal vortex, but they didn't know what they were doing and accidentally brought me back forever.

[ it's a lot more complicated than that, but that's the gist of it. ]

I can be killed, but I don't stay dead. I revive pretty quick. I've been trampled by horses, shot through the heart, blown up, starved, exsanguinated... Nothing sticks.