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What dual typing do you think Popplio is going to have, and why is is Water/Fairy?
17 Pokémon as of ORAS we're able to learn Disarming Voice through leveling up. Key phrase in the previous sentence is leveling up. The majority of the pokemon that learn it this, and it's a majority by three pokémon, are either pure Fairy-type or have Fairy as a dual typing.
The seven pokémon who learn it by level up, save for two outliers, are either part Normal or Psychic type. The two outliers are Milotic and Altaria, two semi-overtly feminine pokémon. Milotic must have, in 3rd gen and ORAS, the beauty contest condition completely maxed in order to evolve when traded. Altaria is fluffy and seems to be more feminine than most dragon pokémon that exist.
This brings me to the next part. Most, if not all of the pokémon that learn the move Disarming Voice are either weak looking (Jigglypuff, Audino, Skitty, Espurr) or overtly feminine (Florges, Milotic, Sylveon, Gardevoir)
No Fighting types, even with selective breeding for egg moves, can learn Disarming Voice. Anyone who believes that GF would make Popplio be able to hatch with the move as its only way of obtaining it is stupid. Would GF go out of their way to selectively breed a Popplio so that it would have the move for a gameplay video/trailer/whatever? It would be too many steps for GF to troll people.
As it stands, Entermaid basically confirmed.