FearItself
There is nothing to fear
Ponyta would be "Lit" lol. But as for mainstream...there are only so many choices my friend and considering this is a gritty and brutal pokemon version mainstream might not be a bad thing (plus this story predates the entire stream. Lol)I was thinking about going Vuplix or Growlithe but I feel like they're too mainstream, and Gastly was already taken. Rip gen 1 Ghost types. I was also considering going Cubone for the Lavender town lore but I wanted to do something different with my character and Kangaskhan does technically tie into that lore anyway. (Even though that wouldn't exist in this era I just like spoopy stuff)
Not a real dragon is a fine choice too (Charmander) but I don't like mainstream stuff :'3
Though I was also thinking about how Ponyta would also be a pretty cool pick. Especially for the medieval age. Knights already used horses but imagine a flaming one!