If you had a good combo constantly fail but work for every one else and vice versa post it.
MF phantom kerbecs ad145 Ewd
Best: Phantom Bull AD145WD Reason: This is my best because it beats every other bey i have. It even manages to beat MF Basalt Auario 230CS and MF Variares R145RF
Worst: Dark Serpent 145ES Reason: It's just a terrible bey in general. It loses stamina in like 10 seconds and gets beaten in like 1 hit.
We have topics similar to that in the Beyblade General forum, and perhaps even in the Beyblade Customizations forum too.