Here´s the one i use it allows very sweet sweeps
XYZ Dragon (Salamence) (M) @ Flyinium Z
EVs: 252 Atk / 252 Spe
Ability: Moxie
Level: 100
Jolly Nature
- Fly
- Dragon Dance
- Outrage
- Earthquake
Also, thought i haven´t fully check it,
Serperior (M) @ Normalium Z
IVs: 30 Atk / 30 SpA / 30 Spe...