Odd One Out

[Fernbutter]

EXPLOUD because his name starts with an E.

Zangoose, Serviper, or Magikarp?

 

[Nah]

Magikarp, since its not the arch nemesis of the other 2.


Sudowoodo, Trevenant, Whimsicott

 

[Olli]

Sudowoodo. since it's the only one that isn't Grass (even though I honestly thought so the first time I got one, despite the fact that it only used Rock type moves during the battle. Smh I was a stupid kid :D)

Keldeo, Meloetta or Genesect?

 

[Harmonious Fusion]

Genesect. It's the only one that doesn't need a tutor to learn its signature move.

Clamperl, Eevee, Swablu.

 

[Kameken]

Swablu can only evolve one way.

Victini, rayquaza, darkrai

 

[Judge Mandolore Shepard]

Rayquaza since it is not an event Legendary

How about Mew, Keldeo, and Mewtwo

 

[Harmonious Fusion]

Mewtwo isn't an event legendary either.

Salamence, Seaking, Serperior.

 

[CrazyElectrode]

Seaking because its only a stage 1 not a stage 2 pokemon.

How about Pikachu Porygon and Poliwrath?

 

[Juno]

Porygon, because it's not based on an animal.

Amaura, Altaria and Azumarill?

 

[Clemstar]

Altaria. Only one capable of flying.

Scatterbug, Wurmple or Caterpie

 

[Wicked3DS]

Scatterbug is the only one introduced in an even numbered generation.

Dragonite, Tyranitar, Metagross

 

[Clemstar]

Metagross.
Metagross is the only evolution out of the three that retains it's prevo's colour palette.

 

[Harmonious Fusion]

Aegislash, Meloetta, Rotom

 

[Nah]

Rotom, since its form change isn't activated by a move.

Magikarp, Feebas, Basculin.

 

[Virtual Headache]

Basculin is the only one that can't evolve.

Electabuzz, Magmar, Scyther

 

[Sonata]

Scyther is the only one without a baby form.

Abomasnow, Gallade, Sudowoodo

 

[Judge Mandolore Shepard]

Abomasnow is the only one with a Mega Evolution

Garchomp, Gardevoir, Ampharos

 

[Harmonious Fusion]

Ampharos is the only one that changes type when it Mega Evolves.

Mothim, Froslass, Milotic.

 

[Khoshi]

Milotic. The rest can only be found with one gender.

Staraptor, Talonflame, Noctowl.

 

[Sonata]

Talonflame is the only one that isn't normal/flying.

Sylveon, Florges, Aromatisse