That's an auto-hit aura. I don't think the Envoy is on your "easy to solo AV" list.
Ahh. That explains the crazy damage.
The Envoy isn't particularly solo friendly for 1 big reason: Healing Flames. You've got 60 seconds to deal 20% of his life, excluding his regeneration, or else you're never going to kill him. He's another of those horrible to solo, but not too bad on a team AVs that just don't solo well (especially if you're fire or neg damage).
For some reason, I thought the envoy was supposed to be pretty easy. hmm
I was running through story arcs, and came across Envoy of shadows, so I figured I'd try to solo it(lol).
Even when I was softcapped by MoG or purple insps, he was still out-damaging my regen. And he was out-regening my damage.
My attack chain was Golden Dragonfly>Gambler's Cut>Soaring Dragon>Gambler's Cut>Flashing Steel>Gambler's Cut. Can I get some advice on where I messed up? Also, heres a video: Video