THe main issue for Summoner is the rotation is too rigid and not flexible. I have 3 fights out of 5 I'm getting screwed as a Summoner this tier. P5S, P7S, P8S second boss. Why? I can't just hold Phoenix/Bahamut and spam Ruin III to fit the burst window.

On paper, the rotation is easy and comfy. That's what they aim and want but Summoner's rotation goes against their principle of burst window. They either need to fix the rotation to be more flexible or they need to rethink about their goal of burst window.

My group laughs when I say I support with Physicks in High Concept :]

Personally, I'm pretty upset at what they did to my boy Carbuncle. He's completely useless outside of Radiant Aegis. Carbuncle is a Light summon with poison abilities. I mean Just look at P5S