I am personally letting sexy yoruichi attack last in my formation so when everyone finishes she will give them 25 fury for the next round minimum. Also your best bet for maximizing dmg would be using shinso gin with dark rukia or at the very least normal rukia as fury buffers. Shini urahara has decent dmg but assaulters using their skill more often will provide you with much more. Also ukitake would be better choice in case you want high dmg support he deals 190% and recover 100 fury.
i want to ask 1 question, i use kasuke and D rukai , sexy yourichi, main, and grimmjow in ES and royka using zabimaru so which skill should i use to get more dmg, and what should i improve