The Relation Game!

[deoxys121]

Quilava, a Pokemon who learns Flame Wheel.

 

[Hooh]

Entei, another Pokemon with Flash Fire as its hidden ability

 

[deoxys121]

Dusknoir, another Pokemon with the ability Pressure.

 

[West the Hardcore Nerd]

Phoebe, an Elite Four member that trains a Dusclops (Dusknoir's pre-evolution, natch).

 

[Arma]

Evergrande City, where the Hoenn Pokemon league is located.

 

[West the Hardcore Nerd]

Indigo Plateau, the location of the Kanto Pokemon League.

 

[Hooh]

Dragonite, one of Lance's Pokemon.

(Lance is in the Elite 4 in R/B/Y/FR/LG)

 

[Hacksorus]

Metagross, a pseudo-legendary like Dragonite.

 

[pikafrogbro]

They are both Final Evolution Forms

 

[LatiasSoulDew]

Chandelure, also final evolution form.

 

[deoxys121]

Serperior, another Pokemon who is able to learn Solarbeam.

 

[VileSigmaZeroX]

Arbok. Both Final Form Snake-like Pokemanz

 

[alisaie]

Seviper - Another Snake like Pokemon.

 

[Arma]

Crobat, another Pokemon able to learn Poison Fang.

 

[Olli]

Team Rocket Grunts - So many of the TR Grunts have Zubat's and Golbat's, which are the pre-evolutions of Crobat.

 

[BarelyMe]

Silver - Silver's father's Rocket Dan's leader,GIovani

 

[Arma]

Silver Wind. Because, uhm, well you get the picture, I hope.

 

[BarelyMe]

Beautifly Get boosted attacks from Silver Wind

 

[deoxys121]

Reshiram, another Pokemon who can learn Shadow Ball via TM30.

 

[BarelyMe]

Didn't quite follow btu

Victini the mon that contracenated with him in the movie