It really depends on the performance tip. If you look at the back of
each Beyblade metal fusion pack there is a diagram showing the defense, stamina and attack. For example, Storm Pegasus is not a very good Beyblade in my opinion. His chart says that his performance tip is 6 attack, 1 defense and 0 stamina. Do you think that’s powerful? It is pretty good for a quick attack but he will only last about 10 seconds because of his zero stamina.
The BEST beyblade without using modified parts from other beyblades is clearly: Burn Fireblaze. Why: beacuse stamina is the best thing you need and it has full stamina. During a game between two kids in the store, I noticed that a Rock Pegasus (Pegasus middle and dark wolf bottom) didn’t have a chance against the big bad Mr. Burn Fireblaze. Buy Burn Fireblaze and prove me wrong.