“ The greatest tree in the woods has a secret, there is a dungeon under it made from the intricate web of roots. What creatures could reside here? What secrets will the PCs uncover?”
“ A certain type of toads, only found in the bleak swamps of Mournmist start falling on the city where the PC's are, like rain. Why?”
“ The Single creature game> Where there is only one type of Creature to fight other than humans
Werewolf> This is one I've worked on a little>there would be one common one and then regional variation
Gnoll> racial differences like humans only a little more severe.
Dragon> you could make them more common and w a lot of younger ones”