As I was playing I noticed some enemies had constant effect skills. E.g. Skills/effects that were always on and never had to be cast.

Alexander's holy aura is an example.

The 2 voidwoken on the Fort Joy beach with Vampyric Hunger on Tactician mode is another example.

I looked through the Stats editor far and wide and never saw anything that indicated how this was done.

How do we as modders replicate this?