This is a drill I use to test out a bunch of new beyblade combos at once.

1. Take your new Stamina (first) and Defense (second) combos and launch them
   
2. Launch a attack combo into the arena
   
3. Repeat for 5 rounds
   

Then, just wait to see the results!

1. If one of your combos burst multiple times, it's either not a good combo or needs revision
   
2. If your combo survives the other beys, it can be a great bey of it's type.
   
3. When an attack combo bursts both stamina and defense combos, it can be a great competitive attacker in tournaments.