After taking a second look at the team I have more to add on. To the people suggesting psyshock on starmie, he is already 1 ttar away from being swept by conkeldurr, so probably no. To be honest the team's weak link is actually kyurem B. Yes it has immense power, yes its bulk is impressive, but it simply requires too much support to be used with a
band set. Yes it demolishes stall, but vs offense it's just making a 1 for 1 trade-off, especially with no speed investment. Even at that, opponents can save fodders and what not to bring in a fighting type that could 2hko the entire team. However, since the team's synergy (both offensive and defensive) revolves around the bulky yet offensive nature of kyube, there isn't much that can be changed. I think a tank latias and another semi bulky wallbreaker/heavy hitter would do great over starmie and kyube.
Just my opinion.