I'm wondering if the quickly-regenerating health after combat is something that's only a part of the start of the game. I'm playing on Hard.

 

Also, I'm playing a Cipher, and the selectable class talents refer to a Soul Whip, which I do not see in my abilities. Is this something that's gained later on?

Endurance regens quickly after combat ends throughout the entire game.

 

I am playing as Cipher as well, soul whip is something that is activated essentially when you start attacking with weapons. You do not physically see a soul whip weapon.

The Soul Whip ability gives your weapon a purple glow when it's active.

Health does not regen. That is Endurance. Health is the blue bar.

Alright, thanks.