Great job. I love a lot of the creatures that are seen outside of the civilized pony inhabited areas and such! (My OC... though I haven't written much to make this official or anything.. studies dragons and dragon magic.. because as Twilight has said ponies know surprisingly little about them unfortunately.) Anywho, it's cool to see art like this ^_^
PokeDex: "Tatzlwyrm, the ungodly viper Pokemon. A tatzlwyrm's breath contains a poisonous vapor. While grappling, instead of making a bite or rake attack, a tatzlwyrm can breathe poison into its victim's face."