I don’t remember much about it but it was like a system where the children all inherit their powers from their parents. They were all guardians and had a special animal/dinosaur as a pet that determined their powers.
One was a guy who I think had rocks/lava power. He had dark hair. He eventually turned sort of evil at the end because he believed he was a monster due to permanently merging with his “animal” and couldn’t switch back to human form. One was a girl that was ice power had white hair and wore blue. Her “animal” was a flying tiny dinosaur The others were a brother and sister, the sister couldn’t walk so the brother always worried about her but she was super strong I think.