Just two forms? Well that would be:
Giratina Shaymin Cherrim Basculin Shellos Gastrodon Darmanitan Meloetta
However, there are Pokemon with more than two forms. They are:
Rotom Deoxys Unown Deerling Sawsbuck Burmy Wormadam Castform Arceus
How to change your username How to add a user avatar Why was my post hidden? The points system Question etiquette Flags vs Downvotes Anime FAQ
Type a Pokemon name, type, move or ability to see instant results.