Bronzong might be a good addition if you were to tweak your kingdra towards a more offensive mixed life orb set, the kind that can 2hko blissey with waterfall. Stealth rock -> reflect -> rain dance -> explosion is always a nice way to run things. However it would be awkward to have both jirachi and zong together.
I might recommend trying the 4 offensive move kingdra set, let another poke set it up and take CB gyara for a spin. CB waterfalls in the rain take a significant chunk out of most of gyara's counters who in most cases happen to kinda wall kingdra at the same time. Anyway, just something to think about.
Also, some kind of kabutops might be fun. Aqua jet + stone edge + x-scissor destroys.