How do sidar shades work now

[WarKirby]

Hi all, wondering if anyone can help. I'm playing the sidar, i have a unit that's at lv6, but i can't find any way to turn it into a shade. how does this feature work ?

 

[Viatos]

The unit gains...level-based immortality or something. I'm not really sure how it works except that the Shade promotion exists to protect your highly promoted units rather then turn them into old-style shades. You still have superior Specialists, you just can't farm them from Divided Souls and stuff.

 

[Valkrionn]

Pretty much what Viatos said. They get a form of immortality (%chance based on level to be immortal each turn, chance ran at start of turn so reloading doesn't affect a failed battle). Shades are no longer used as specialist farms. I strongly disliked that mechanic.