Fakemon and fusions are fine as long as they are not too over powered.
Please no Ground and fire types, but moves with those typings are fine. (Two of those moves max)
Keep in mind Grass, Fairy, Ice, Dark, Psychic, Flying, Rock, Normal, and Bug are resisted
Posion and Dragon don't do anything.
(So only Water, Ghost, Steel, Electric, and Fighting do neutral damage)
Only one legendary signature move and one mythical signature move.