The full list of Pokémon who have type changes is the following: Farfetch’d, Masquerain, Volbeat, Illumise, Glalie, Electivire, Serperior, Pignite, Emboar, Dewott, Samurott, Cofagrigus, Gothita, Gothorita, Gothitelle and Beartic. Emboar, not so much, but Samurott and Serperior both bring new (albeit not new if you’ve played Blaze Black and Volt White) typings to the table. The Unova starters in particular get some rather extreme changes in their final forms. Some Pokémon also gain extra typing, sometimes giving you some new type combinations to try. Farfetch’d, Chatot, Mothim, and Magcargo are just some examples. Most of the stat changes focus around making some of the weaker Pokémon better. Note that with the exception of the TM compatibility changes for Hurricane, Bug Buzz and Sucker Punch, all changes in this document are NOT present in the Vanilla version of the game. A rather common feature of any of my hacks/mods/etc is the changing to a lot of Pokémon.