Do you have a particular way that you use them?
No, I've tried a wide variety of ways of fielding them and they usually do adequate, with me neither crediting them with my win or blaming them for my loss. (though Skroxigor are fantastic in siege scenarios but that's a pretty unusual scenario).
I've made small groups with 10-11 Skinks and 1 Kroxigor to buddy with my Saurus block. The idea is they use their slightly better movement to flank charge whatever fights the Saurus. It sometimes works out okay, but Saurus aren't that great, so my results with that are lackluster.
Sometimes I thrown one Kroxigor into my Skink tarpits so the entire unit tests on Ld7. That works out okay but ideally your tarpit should be near the general. So again mixed results.
I'm not a big fan of Monster Mash lists myself but I've tried it a few times. When I do, I fill most of my Core requirement with Skroxigor. Skroxigor are tougher and stronger than Skink Skirmishers and they are faster than Saurus so they can keep up with the faster dinosaurs whereas Saurus would be left behind. It's okay. Not great, but okay.
Sometimes I would field two blocks of Saurus warriors (for best results give the Slann the lore of Light), sometimes I would field one block of Saurus and one Skroxigor. It's usually underwhelming to use Skroxigor as a Saurus substitute but I had some modest success when the terrain set up had a lot of water features on it. I used my terrain drops to essentially create a "wet half" and "dry half" of the tabletop. I was able to use the Skroxigor strategically to dominate the wet half of the table while my Temple Guard and Saurus Warriors fought in the dry half.
That was probably my best experience with Skroxigor but I was playing Orcs and Goblins and I usually do well against O&G normally.
