I wouldn't submit one unless the theme called specifically for it. For me, the actual Pokémon featured in the card is more for flavour and thematic reasons (as I'm sure it's become abundantly clear in my past entries ). There are just so many Pokémon most people and I are already familiar with that it becomes hard to not be immediately drawn towards a few of them when looking for a specific theme.
That being said, I have no qualms with someone submitting Fakemon if it fits their cup of tea, as I base the balancing a card on the type of card it is - VMAX, GX, Stage 2, Basic, etc. - rather than the individual Pokémon, which is part of why I love TCG faking. Even Pokémon you would never see used competitively in the games or Pokémon that just haven't had a time to shine in the official TCG yet can have the spotlight.
That being said, I have no qualms with someone submitting Fakemon if it fits their cup of tea, as I base the balancing a card on the type of card it is - VMAX, GX, Stage 2, Basic, etc. - rather than the individual Pokémon, which is part of why I love TCG faking. Even Pokémon you would never see used competitively in the games or Pokémon that just haven't had a time to shine in the official TCG yet can have the spotlight.