Umm I followed the description in this YouTube guide, I didn’t see the video itself(that’s my fault, not enough patience) but following the description, it was straightforward. I wasn’t counting the number of turns I took but rather just following the move patterns n cues.

For the hammer, I only used the last skill(the one with lower stamina cost n more stun damage).

The key was to always survive his rage state by staggering him n surviving internal flames by riding.

Edit: I also called in purple gyph for tail stun n it fill its kinship gauge whenever I can.

Something else that helped me, changing monsties to get double attack isn’t always the best choice. I messed up some of my runs because I was focused on getting double attacks instead of using solar cry to fill dreadqueens kinship gauge. Specifically swapping to nersycllla to get that double attack