Technician easy. With moves like Bug Bite, Aerial Ace, and Quick Attack they all get a 50% power boost, plus Bug Bite and Aerial Ace have their power boosted once again because of STAB. Here is one of my favorite movesets for battling. It would be nice if you could one with a Jolly Nature.
Scyther @ Lum Berry
Trait: Technician
Jolly Nature
- Swords Dance
- Aerial Ace
- Bug Bite
- Quick Attack
Swords Dance is great for boosting that already good attack. Aerial Ace and Bug Bit are its STAB moves and get the Technician boost. Quick Attack is +1 priority and Technician and is used to finish off weaker or frail foes. Lum Berry protects from harmful status.
Hope I helped! :)