great team heysup, but like a lot of teams this round, it seems like you're weak to those powerful psychics and ghosts like alakazam, mismagius, and chandelure. in fact, you don't even have a resistance to said types, which can prove incredibly problematic in a metagame filled with those aforementioned mons. the team's synergy is amazing though, so i don't really wanna mess that up too much. the only suggestion i can come up with is putting a spd sableye over froslass, and then putting spikes > sleep powder on roserade. sableye allows you to retain the spin blocking prowess of froslass while being a fairly good check to mismagius and alakazam (not to mention all the other annoying shit sableye can pull off). continually, putting spikes on rade lets you keep the spike-stacking offense while sacrificing the ability to cripple something for the rest of the match.
hope that helped even a tiny bit, good luck with the team!
edit: i get bonus points for recommending sets that actually exist, unlike cm zapdos.