These are all your sparkings?
You don't a green. You can go double color. Example.
Blue, Blue, Purple (The purple will have an advantage over green which is your main threat)
BBP, RRG, PPR, YYB etc
Always check the z-abilities and if they complement each other. You can add Ex Raditz, Shallot, Ex Vegeta Green .
look at the z-abilities tag on the tools section and choose 2 characters to complement your team (saiyans of course)
Yes, it's a really good team