I have two legendary exclusive moves I thought up, and their for two Fakemon Legendaries I thought up(haven't thought up of names yet)
Pheonix Legendary of Light and Fire(Pokedex entry: This Pokemon is said to have been born from the hopes of People and Pokemon. It was thought that at the end of it's life, it will burn brightly and release tons of energy and fire, but a new Pheonix will be born from it's residue.)
Hypernova (Fire-type): (equivalent to Explosion)The User will collect energy before it lets it out in a disasterous explosion. The user will faint after. (It takes one turn to charge, but on the next turn it will let out a 250 BP Fire Type Explosion that has a 40% Chance of burning, but will cause the user to faint after it's used. THe move will execute regardless of if the oppnent protects or not.)
Dragon enshrouding darkness on all.(Pokedex entry: It's wings are thought to be so wide, it can block out the sun.)
Enshroud (Dark-type): The user will cast a blinding darkness that causes all moves to miss. (The move will cause all moves to miss their targets, but it will not stop status from bringing effect to the user. If used in succession, the chance of working will be decreased to 25%)