I know Yama will get beaten even though he shouldn't be. Kubo MUST make something that would make his defeat justifiable. I have read a lot of manga and watched tons of anime and imo, Yama has the strongest fire type power out of all. Yeah Yama's flame>> Ace, Natsu etc..
I'm kinda sad that Yama killed the fear dude. I was hoping Rukia/Renji would avenge Byakuya's death instead.