Destructive,Fast team

[DarkFury98]

I need help with a team that has good type coverage and good attack/sp attack
My current team:(I have access to Hoenn,Kanto and Johto pokemon only)
1)ampharos
2)Typlosion
3)Swampert
4)alakazam
5)Machamp
6)???

 

[Checkmate]

Ninjask.

You'll find it a killer.

 

[olih]

Would it help to post some moves maybe? But oh well, for the 6th slot a good choice would be Tyranitar. It's fast, it's strong, it's hard to take down.