Odd One Out

[Frostinite]

Dragonite is the only one that doesn't have an alternate form

Togetic, Clefairy, Floette

 

[destinedjagold]

Togetic is part flying type~

Porygon, Porygon 2, Porygon Z

 

[Lycanthropy]

Porygon2 is the only one whose name isn't composed of just letters.

Mawile, Gengar, Typhlosion

 

[Foamster-Whiskey]

Typhlosion is the only one without a mega evolution

Raikou Thundurus Zapdos

 

[Judge Mandolore Shepard]

Thundurus is the only one with more than one form

How about Lugia, Zekrom, Dialga

 

[Emboar]

Lugia is the only one that is summoned with an item.

Charizard, Torterra, Infernape.

 

[Emboar]

I've never had a shiny Luxray.

Blastoise, Flareon, and Vileplume.

 

[Lycanthropy]

Blastoise isn't evolved with an evolution stone.

Gyarados, Seviper, Rayquaza

 

[Foamster-Whiskey]

Seviper is the only one without a mega evolution

Arceus Leafeon Jolteon

 

[Guardian]

Arceus is Pokemon God and the only Legendary.

Bulbasaur, Charmander and Squirtle

 

[Dedenne1]

Charmanders final evolution has 2 Megas unlike the other 2
Lugia, Suicune, Articuno

 

[Foamster-Whiskey]

Suicune is the only one pokemon that can't fly

Rotom Eevee Cascoon

 

[Lycanthropy]

Eevee is the only one with legs.

Granbull, Dedenne, Magikarp

 

[Foamster-Whiskey]

Magikarp is not a fairy type

Froakie Chespin Charmander

 

[Dedenne1]

Shuppet is the only one that is a monotype
Dedenne, Magnectric, Lanturn

 

[Odyssey]

Manectric can have Lightning Rod as one of its Abilities.

Rapidash, Ninetales, Arcanine

 

[Emboar]

Rapidash evolves by level up.

Togepi, Swirlix, and Cacnea.

 

[Odyssey]

When Swirlix evolves, it doesn't gain a new type.

Voltorb, Blitzle, Electrike

 

[Lycanthropy]

Voltorb doesn't have genders.

Carvanha, Murkrow, Sneasel

 

[Foamster-Whiskey]

Carvanha is the only one from the Hoenn region

Wurmple Kricketot Weedle