Rixis had it’s stats changed and a slow immunity changed to resistance, which doesn’t work well anymore since all Resilient moves (strike, impact, rampage) inflict vulnerability which it’s immune to. And the stats wasn’t even the wrong part about Rixis, it was it’s move set, a hybrid composed of 2 fierce and 1 resilient should have more fierce aspects than resilient.
Same thing for Monolomet, slowing isn’t as common, so it’s a lot better than its nerfed state, it got even better this patch because it can’t be made vulnerable. And with 2 impacts which it can chain for 4.5x damage and a strike which just nullifies, it’s a lot better than Magna still.
Rixis loses match ups it didn’t lose prior to this patch but wins a lot more in others, Monolomet is just winning more than it did.