Nightmare Rex SW145 SD

Nightmare Rex SW145SD is a Balance-Type Beyblade released with the video game, [http://beyblade.wikia.com/wiki/Metal_Fight_Beyblade:_Choujou_Kessen%21_Big_Bang_Bladers Metal Fight Beyblade: Choujou Kessen! Big Bang Bladers].

Face Bolt: Rex
The Face Bolt depicts the skull of the dinosaur, Tyrannosaurus Rex.

Energy Ring: Rex
Rex's Energy Ring is translucent gold, with dinosaur heads on the sides.

Fusion Wheel: Nightmare
A moderate Fusion Wheel with good Attack and Defense but low Stamina. It resembles a mixture of the Storm, Cyber, and Hyper Fusion Wheels.

Spin Track: Switch 145
SW145 is one of the first tracks to have a type-switching atribute. (Attack & Defence) It has been released in red by Poison Serpent, and in clear orange by Nightmare Rex. SW145 switches by removing the performance tip, taking the wings off, flip them over, and slip them back on.
 * Weight: 4.2 grams

It is in attack mode when the green-ish triangle in visible on the bottom. It is in defence mode when the two small stone-looking triangles are visible.

This is a unique 145 spin track, which has a cool ability with it's wings. Even though it is illegal, if you remove the wings, it will make a good spin-rate 145, for it is thinner and has a faster spin. But it is suggested you do not do that, for it is unfair and illegal in battles.

Try it out!

Performance Tip: Semi-Defense
SD is not able to wobble as much as D, so for Defensive purposes, D should still be chosen over SD if you are trying to add some Stamina to your Defense custom. That being said, WD would be a better choice than D for that situation, and also arguably for Stamina as well because with the even wider tip. However, EWD has more stamina than WD. With WD, it is allowed to circle the stadium in some situations when it is on a larger angle towards the end of a battle, thus outspinning D or SD based opponents. However, sometimes this does not happen, and SD easily knocks over the wobbling WD custom before it topples over itself.
 * Weight: 0.6 grams

It really comes down to personal preference when deciding whether to use SD or WD because they are so closely matched. For pure Stamina it impossible to tell which would win a given match, but WD would prepare you for more situations by being able to take hits better than SD. Test both and decide for yourself which one works best for what you are trying to do.Optionally you could use EWD, since it has more Stamina. It depends on whether you are willing to sacrifice some Defense for more Stamina.