Odd One Out

[Percy]

Blaziken and Chimchar both evolves to fighting types, but Quilava doesn't!
pichu, magmar, elekid.

 

[Lycanthropy]

Magmar is the only one not electric.

Golurk, Kakuna, Zebstrika

 

[Sirfetch’d]

Kakuna isn't fully evolved!

Rapidash, Dodrio, Slowbro!

 

[Sapph the Knight]

Rapidash. It's the only one that's not got multiple sets of eyes (slowbro has the set on it's tail shell).

Hydreigon, Dodrio, Dugtrio

 

[Sirfetch’d]

Hydreigon isn't from gen 1!

Kabuto, Caracosta, Binacle?

 

[Sapph the Knight]

Binacle's not a fossil.

Hitmonchan, Hitmonlee, Hitmontop.

 

[Sirfetch’d]

Hitmontop is the only one that stands on it's head!

Breloom, Scizor, Ambipom?

 

[Dedenne1]

Ambipom is not a dual type pokemon

Dedenne, Emolga, Pachirisu

 

[blue]

Pachirisu is the only monotype!

Golem, Rhydon, Onix

 

[Sirfetch’d]

Golem is fully evolved!

Exeggutor, Celebi, Venusaur?

 

[Lycanthropy]

Celebi isn't from the first generation.

Glalie, Avalugg, Abomasnow

 

[Sirfetch’d]

Avalugg doesnt mega evolve!

Gothitelle, Dugtrio, Magnezone?

 

[Percy]

Dugtrio is the only one who has 1 pre-evolution form.

bulbasaur, servine, and treecko.

 

[Sirfetch’d]

Bulbasaur is part Poison type!

Articuno, Suicune, Regice?

 

[Lycanthropy]

Suicune doesn't have the 'i' at the fourth place in its name.

Pineco, Spinarak, Ledyba

 

[Starry Windy]

Pineco is not a version exclusive Pokémon.

Raichu, Jolteon, Heliolisk.

 

[Meadow]

Heliolisk evolves from a Sun Stone rather than a Thunder Stone!

Swellow, Staraptor, Pidgeot

 

[Lycanthropy]

Swellow is the only one not learning non-STAB attacks by levelling. (Staraptor has Close Combat and Pidgeot has Twister.)

Lopunny, Blaziken, Gengar

 

[Sirfetch’d]

Gengar's mega evolution isn't part fighting!

Dragonite, Flygon, Salamence?

 

[Starry Windy]

Either Salamence because it's the only one who gets Mega Evolution, or Dragonite because it's not originated in Hoenn like the latter two.

Blastoise, Greninja, Samurott.