Polewik in Polish mythology is field spirit that appears as a deformed dwarf with different coloured eyes and grass instead of hair. They appear either at noon or sunset and wear either all black or all white suits. According to local beliefs they lead wandering people in a field astray, give them diseases or ride them over with their horses if they are found asleep.
Mokosh (aka Makosh). A goddess of fertility, water, and women in old Ukrainian mythology. She shears sheep and spins thread. Her name it is derived from the word combination maty kota ‘mother of the cat,’ that is, ‘mother of good fortune.’ She is related to Hecate and Aphrodite in classical mythology and to Zhyva and Morena in the western Slavic mythology. Mokosh is mentioned in the Primary Chronicle as among the chief gods, which include Perun, Khors, Dazhboh, and Stryboh.
The púca (or pooka, phouka, phooca, púka; Irish for goblin) is a creature of Irish folklore and Welsh mythology, one of the myriad fairy folk, both revered and feared by those who give credence to their existence. Their belief extends as far as the West of Scotland. It has counterparts in Welsh (the pwca or pwwka), and in Cornish folklore (the Bucca). It is a shapeshifter, often seen in the form of a wild black horse, with golden or glowing eyes.
In Slavic mythology Perun (Перун) is the highest god of the panheon and the god of thunder and lightning. His other attributes were fire, mountains, the oak, iris, eagle, firmament, horses and carts, weapons (the hammer, axe and arrow) and war. Like Germanic Thor, Perun is described as a rugged man with a copper beard. He rides in a chariot pulled by a goat buck and carries a mighty axe, or sometimes a hammer. The axe is hurled at evil people and spirits and will always return to his hand.
Scathach - Goddess of the Dead and Battle. It was her job to look over the battlefield after a war for the souls of the dead to lead them on the Death Journey. Although she had a preference for warriors, she would also make sure to collect any wandering soul that had gotten lost on the path. As such, it was said that she is helpful when mourning for the death of a loved one, as she leads the dead through the dangers found on the path to the Land of Eternal Youth.