Please help me

SO here are some combos, and I was wondering if they will be effective:

Attack : Variares GB145 R2F

Defense: Death Cancer S130RB (defense mode)

Balance: Scythe Cancer 230 SD (Stamina mode)

Stamina: Phantom cancer BGrin (Stamina mode)

Spin Steal: L drago Destroy BGrin (Absorb mode)

Can someone please tell me?

Also there's an "illegal combo I made", which is Fusion Fusion (both the rubber parts with the PC frame fused together) D125 with no tip. YOu just gently set it down in the stadium and no matter which beyblade your opponent sends you still crazy spin.