thats your opinion all the way, but I can try to help you a bit
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PROS:
- breaks through substitutes with infiltrator
- can abuse the choice specs effectively because of his high speed
- great move pool with fire blast, dragon pulse, boomburst and more
- good bulk, so you can sweep without getting OHKO´ed if you don't OHKO´es (hope you understood what I said now)
- draco meteor+u-turn
CONS:
- specs is really needed due to not that good sp.atk
- suckish attack stat which makes its great move pool half as useful
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hope this helped you on your way!:D its your opinion now. if you need speed, a great lead and a good wallbreaker, then use him. if you are just looking for a dragon/ flying type too build a team around, I would consider using dragonite>