I'm interested if the whole genetics thing would possibly alter the appearance of the person being altered. I have an idea with feline DNA causing my character to grow fur, morph her ears, and grow a tail, while enhancing her flexibility and reflexes. A trade off for this speed is her strength. She has more fast-twitch muscle fibers, so while she can dodge quickly and sprint over 30 mph, she can't do it constantly for over a minute. Like a cheetah, a burst of energy before she is exhausted. On top of that, she can't hit very hard, and would rely on quick attacks and her agility to win a fight.

As for that cheat death thing, it sounds too overpowered to me. It's basically god modding. Also, why would such a power even be useful? most roleplays can't kill player characters unless the player agrees to it. So it brings up the issue of a player character trying to kill Kafele. What if that player does shoot to kill, but doesn't want to have their character die? It's unfair in that respect, because on top of the no killing player characters, the 'passive' kills the other person. If you say "Then don't try, and we're good." It's OOCly saying "Can't attack me!"

That's my opinion on that. Feel free to nit pick my own choice, if you wish. I'd be glad to converse, and let the GM decide.