revelator
/riˈvɛl.ə.tɔr/Definitions
1. noun
a person or thing that reveals or discloses something, especially a secret
“The whistleblower was hailed as a revelator of government corruption.”
2. noun
a person who experiences or interprets divine revelations, especially in the Book of Revelation in the Bible
“The revelators were the first to understand the apocalyptic prophecy.”
3. noun
a person who is the source or originator of a new idea or movement
“The artist was seen as a revelator of a new style in modern art.”