Schuka is a pike fish — Russian fairy tale character

The Slavs of old assigned terrifying abilities to this fish – people thought it could swallow a man and that the Water Spirit rode it in the watery kingdoms. In Russian fairy tales, the pike assumes more reasonable proportions and a more harmless nature.
In fact, a meeting with a pike fish brings good luck, as the fish can even grant wishes. But you have to catch it first, as Yemelya the Fool (or Ivan in some versions) does in the fairy tale of the same name, and then release it back into the water. There is no limit to the wishes you may ask. Yemelya gets eight wishes in his tale. The tale here is “The Fool and the Fish.”