Ukonvasara
Ukonvasara is a mythological artifact associated with Ukko, the Finnish god of thunder, sky, and weather. Its name literally translates to "Ukko's hammer." It is depicted as a powerful weapon, similar in concept to Thor's hammer Mjolnir in Norse mythology, or Zeus's thunderbolt.
Legends describe Ukonvasara as a tool that Ukko used to strike the sky, creating thunder and lightning.
The imagery of a hammer or thunderbolt was a common motif in ancient European and Siberian shamanism,