They guide humans to medicinal plants. Beautiful earth and water spirits who have magical powers and live in underground cities. They are shape-shifters who often take the hybrid form of snakes and humans, sometimes with many heads. Tree fairies, the descendants of fallen angels. Small fairies associated with bogs, who may be helpful or harmful.
Banshees live in sparkling fairy heavens beneath grassy hills, wear gray cloaks and green dresses.
A banshee may attach herself to a particular family and wail eerily whenever one of them is about to die. Drunken leprecauns who come out at night. Underground Fairy Court of the dispossessed Tuatha de Danann. Fat, ugly fairies who decended from the Fomorians. Cunning Irish fairies who make shoes and own pots of gold.