Spirit derives from English folklore (England).
Boggart is one of numerous related terms used for a household spirit, presumably means 'bug' in English.
In Northern England, there was the belief that the boggart should never be named, for when it was given a name, it would not be reasoned with and would become uncontrollable and destructive.
Tricksters are unpredictable when summoned.
Summoning ingredients requires: Joker Card