I'm also having trouble with Kimera and Katalyst too. here are the pets im using

https://www.sylestia.com/view/pets/?petid=3023873
https://www.sylestia.com/view/pets/?petid=2841956
https://www.sylestia.com/view/pets/?petid=2938577

they have all legendary, with some mythical, but i still can't even defeat one of them

I'm having issues with them too. X3

My lvl 25 team barely beat Fire Eyes and Stonewing with little health. It's not easy at all. It's like I'm a newbie again. X3

I'm using Fire, Shadow and Light. I honestly do not know what I'm doing incorrectly to die so fast in this battle. lol.

I shall link the team:

Kion
MistyTail
Rainbow

Make sure to ping me with what's wrong.

I do have some of the right equipment, I've been trying to get more mythical armor. You can always give advice. I would love to hear it! ^w^

Thanks.

~Banzai.

i can't beat these two either :T here's the ryori team i've been using. if you see this and have any advice for me, plz ping me;;

Kill Kimeira first. She is the offensive, and Katalyst doesn't do much except for build fire walls. Also, when he builds the fire walls, it is best to block, or do something that is defesive, like heal, etc. I find it super helpful also to use max stats on my team.
Here is my team:
Number One:

Number Two

Number Three:


I hope this helps :D