Summon Animals affected by the Darkening (Just change the eye color to purple), Land Strider Cav for the Gelflings.

I considered something to do with the darkening.

Also the Gelfing land striders cav, but they don't make sense. They never use the land striders for combat in the show/movie and I don't know how you practically would use land striders in combat.

@Juz....as you mention it is a little light on content. I dont know the books so I cant suggest particular monsters. I would prefer some kind of summonings and perhabs spice it up with some stationary defence units that could help guard the crystal shards.

i found this in the wikkies https://darkcrystal.fandom.com/wiki/Shadow_fingers
ther are Darkend Landstrieders https://static.wikia.nocookie.net/darkcrystal/images/4/41/Thurma_vs._Darkened_Landstrider.png/revision/latest?cb=20190924133531
and ther are Fireling#s maybe a dark version https://darkcrystal.fandom.com/wiki/Fireling
the spider like Arathim https://darkcrystal.fandom.com/wiki/Arathim
fay dragon thing of magic https://darkcrystal.fandom.com/wiki/Bohrtog
thies Bat dogs maybe a darking version https://darkcrystal.fandom.com/wiki/Rakkida

found this stuff

As I see it, the existing fun in this mod is the beefy Skeksis commanders. Collect em, upgrade em, keep em fed. That much works really well, but the point is somewhat blunted by how little they have to differentiate each other. Even the Emperor, while probably worth recruiting, doesn't do anything unique until he's tier 3.

I'd say that adding breadth to the class should be done through the commanders. By giving each commander type their own unique rituals, you could use recruiting and upgrading a given commander type as the buy-in to access a playstyle.

I'd let them keep the build shard ritual across the board, but divvy the rest of the current rituals up as part of the unique rituals. I'd say each type could have a ritual all their own for each level. That opens up room for them to have their own unique summons, terrain types they are hunting, etc. that will make them feel special.

I have more concrete ideas I'll share if anyone is interested.