Question: what are the unknown exotics in destiny 2?
Answer: There are: Malfeasance, Wish Ender, Chaperone, and Ace of Spades. There are no classified exotics in the energy slot, and then there is one classified (four in total, Two-Tailed Fox, Black Talon, and The Queenbreaker are shown). The one unknown is One Thousand Voices.