To Be Completely Honest Yu Could Use A Ruby Or 2 In There And A Crystal Promise Or 2 Because If Yu Use That Combo While Yu Have Multiple Crystal Beasts In Yur S/T Yu Can Swarm The Field With Them Which Opens Up For XYZs Yu Might Need Like Blackship,ZenMaines, Photon Papilloperative (Or As I Like To Call Her The Photon Butterfly Assassin), And Lavalval Chain (Which Can Help Yu With Summoning 1-2 Rainbow Dragons Depending On If Yu Use Rainbow Gravity Or Not).