GO 4 DEDENNE
Nah, I'm just kidding. I would actually suggest Ampharos. It gets an array of moves and can Mega Evolve into a part Dragon type which is amazing. It has a great HP and Special Attack which makes up for its poor speed. You kow what you'll get out of Amphy, a bulky special attacker.
Ampharos @ Ampharosite
Trait: Static ---> Mold Breaker
EVs: 252 HP / 252 SpA / 4 SpD
- Volt Switch
- Dragon Pulse
- Hidden Power / Focus Blast
If you ignore EVs and Natures and all that, just disregard it and go for just the moves.
You can get Thunderbolt from a TM by beating the Lumiose City Gym
You can get Volt Switch from a TM from the Battle Maison
you can get Dragon Pulse at level 65
You can get Hidden Power from a TM in Anistar City, but if you get a bad type, go for Focus Blast which is in a TM at the Anistar City PokeMart.
You can catch Mareep in Route 12 and evolve into Flaffy at level 20 and Ampharos in 10 more levels.
You can get The Ampharosite in Azure Bay.