So when it comes to the Fierce-Cunning-Resilient classes, we know that Fierce attacks have the least amount of difference to their previous versions. Cunning and Resilient both nullify another positive effect compared to their previous versions, Resilient actually nullifies 2, and Cunning adds another debuff. Fierce just cleanse Vulnerability. That’s the only upgrade. They don’t nullify anything different, nor add a debuff. What I’m thinking is for Fierce attacks to apply swap prevention and for Resilients with Pin resistance to lose it.
First, Fierce getting Pin. This would allow further differences between Defense Shattering and Fierce, and it would be a buff to fierce creatures in general.
Second, Resilient creatures losing swap prevention resistance. 18 (13 pure Resilients, 1 Cunning Resilient, 2 Fierce Resilient, and 2 mislabeled Wildcards ) total have some kind of swap prevention, 8 with immunity to Pin. None have lower than 50% and most have 67% or more resistance. The 2 I can see having some resistance are Ardontosaurus and Ardentismaxima, which are Fierce Resilients with Secodontosaurus, which has immunity. But the rest really shouldn’t, though they should be looked at one by one to see if they need it removed or not.
These are just my thoughts, if you have a problem with this idea or an improvement on it, send it in the comments.