freyar
Extradimensional Explorer
Come'on, Alzrius, don't you want to use a giant vampire frog?Well, these aren't ones I feel particularly inclined to use in my games, but it strikes me that all of the monsters in this article are underrepresented: Dungeons & Dragons: Celebrating Thirty Years of Very Stupid Monsters.
EDIT: And it seems that article now has a Part Two. Huzzah!
