There is a long list of beast creatures in the standard Monster ... If Wild Shaping is your primary reason for playing Druid, Circle of the Moon is a necessity. Circle of the Moon Druids should ...

Choose a total of four beast forms at level two ... Previously, this was only the case for the Circle of the Moon druid subclass. You will also now gain more uses of Wild Shape as your druid ...

While most Druids focus on life and nature in a sort of hippie-mama bear way, the Circle of Spores Druid gives the class a necromancy kick. After all, death and decomposition are also part of nature.