Rayquaza, Reshiram, and Zekrom: These three dragon-type Pokemon represent Daenerys' three dragons the green Rhaegal, the white Viserion, and the black Drogon.
Rapidash: The fiery horse Pokemon represents Khal Drogo, leader of the horselords of Essos, who trekked across the burnt desert with Daenerys as his Khaleesi.
Ursaring: The bear represents Ser Jorah Mormont, of Bear Island Daenerys' bodyguard and advisor.
Hydreigon: The three-headed dragon-type Pokemon represents House Targaryen's sigil of a three-headed dragon. I know she already has three dragons in this, but c'mon, just go with it.
Glaceon: The ice-type Eevee evolution represents Ghost, Jon Snow's direwolf companion.
Beartic: The ice-type bear Pokemon represents Jon Snow's home in the icy North.
Murkow: The crow Pokemon represents Jon Snow's pledge to the Night's Watch who often are referred to as 'crows' by the Wildlings.
Cubone: The ground-type, mother's skull-wearing Pokemon represents the death of Jon Snow's mother, an event that has defined him for much of his life. Also, like Cubone, Jon Snow is sad ALL THE TIME.
Lampent: Lampents steal spirits away, sorta like those ice-zombie things north of the Wall. Also, they're ghosts, and Jon Snow has a direwolf named Ghost? Yeah, it's a stretch, but so is the entire idea of Pokemon existing in this series.
Froslass: Well, this is a ghost and an ice-type. Jon Snow's always up in the ice, plus his last name is 'Snow,' and the whole "having a dog named Ghost" thing. Although, if we're being honest here, Jon Snow's got a lot on his hands already, he doesn't really have time to be training Pokemon. And if he were training Pokemon for some reason, he probably would just make the best team he possibly could not stick to some kind of personal "theme." Like, he probably wouldn't really want THREE Ice-types.
Entei: It's a lion? And that's the sigil of House Lannister? I know it's a Legendary Pokemon and all, but whatever, maybe they bought it somehow. Yeah, let's go with that. The Lannisters would probably just buy a bunch of awesome Pokemon.
Meowth: He likes money. I mean, he sucks, but the whole money thing works pretty well, right?
Sableye: When I googled "Imp Pokemon," he was the first one to come up, so here we are.
Ludicolo: He seems like he'd be a big party guy Pokemon, right? Tyrion's pretty down with partying too. Also, there was no "wine Pokemon." Or "grape Pokemon." Maybe there will be in X/Y though, so maybe I should have held off on this another month or so.
Snorlax: He's lazy? Tyrion's pretty lazy for a while in the beginning.
Missingno: Well, many in Westeros view little people as aberrations from nature, so
well, I know Missingno isn't "technically" an actual Pokemon but
c'mon guys. Are you gonna start disagreeing or something? These are two entirely separate fantasy universes, so agreeing or disagreeing is pointless. There are no Pokemon in Westeros, period. This is just one guy on the internet combining two things the internet likes with a bare minimum amount of logic applied. I mean, if Pokemon WERE in this world, the entire history would probably be a whole lot different. Really, if any society had Pokemon that were real in it, everyone would be dead so fast. Like, look at some of these things. There are so many dragons and fire-horses and ghosts and FLOATING WHALES and all kinds of crazy monsters that would kill everything in their path. Then again, pretty much everyone in these books do get horribly killed. So maybe it DOES make sense to put them together?
All I know is that if you WERE going to combine Pokemon and Game of Thrones, you would pretty much have to have Melisandre giving birth to a Gastly.
All right. Fine.