Alright, Khaiden will attempt to mend his body, while also drawing on any other life-forces in the area to help. Not his allies, but plants, fungi, microscopic organisms, etc. If he's healed enough to function without harming himself, he will try to get to a safe spot with others between him and the enemy.
You've went through a lot of shit as a Necromancer, nobody liked you and everybody wanted you dead. Honestly this isn't your first scuffle, it's not even the first time you find yourself so damned crippled.
Draining passive energy, it's pretty low and slow, but you're recovering and mending steadily. It'll take some time, but you'll make a full recovery..
Or you can eat someone's life force and use that to fuel your own for accelerated recovery.
...run towards the stairway as if a demon was after me, manically yelling at the mic:
"SECURITY, FLASHBANGS! THROW FLASHBANGS IN MY PATH; I'M GOING TO THE STAIRS. FLASHBANGS ON ME, FOR FUCK'S SAKE!"
If I see security agents throwing flashbangs in my path, I'll close my eyes and cover my ears, and keep running for as many steps as I reckon possible without hitting a wall while yelling to unblock the inner ears.
Though you have a helmet, you choose to close your eyes and cover your 'ears' when you see a bunch of security downstairs starts flinging Flashbangs up the stairs. Running down the stairs with your eyes closed proves to be a terrible mistake as in your slight panic, you trip over your own leg and thus began your painful decension.
You cracked your faceplate against the stairs then rolled down, smacking and cracking yourself painfully down the stairs and ended up bowling the three securities at the base of the stairs, tangling everyone.
You think you might've broken something.. A random thing got into your mind and reminded you that stairs killed more people than guns do.
Kind of lurch out of the way against the wall and keep the light focused on the fucker so it keeps running past me.
You were about to cast more light before your world exploded trice. The lights so bright it felt like you were looking at the sun for hours, it burned your eyes, there were three terrible explosive bangs that hurt even worse. You didn't realise when did you get on the ground writhing, covering your eyes and ears in pain, nor do you
Hear your own screaming.
You think your ears are bleeding too, that can't be good..