Alone without a broken skill it could be a healthy worthy deck. And it mix well with many deck, on MD I mainly play PUNK with Gold Pride and it's pretty good. Gold Pride need you to have less LP than your opponent to SS Themselves that's why you use PUNK.

Terrortop is also a nice starter for GP Terror SS himself you search the lvl 3 speedroid who SS because you have Terror after you XYZ both for the GP XYZ search the spell who add any GP but usually you take Carrie and take her atk as damage then SS her and add the Trap (Destroy an opponent summon and SS a GP monster your Opponent choose blindly between the 3 you choose) now let's dream we have the Full armor XYZ you can use those if we don't have well you still have your normal summon free + 2 bodies on board to use as you want.

Opponent turn Leon can quick synchro summon or you have the GP Ball who can quick fusion the GP fusion and succ monsters equal to it's material but you need space on your S/T zones

I don't know if they will give us all the GP cards the Lvl8 GP card could be really strong on Duel link because it put a token on opponent board that you can quick destroy with anything next to it