[HoMM V]9 Race - Swamp! Is it needed?

river nymphs (naiads) and sea nymphs (nereids), ocean nymphs (oceanids); if the castle is evil, they can be turned into fallen creatures or some other… evil… creatures. It’s not necessary to make them strong… an alternative to fairies or beasts… and also, naiads can be plants and dragonflies :) or something like that.