First Stage- Chikorita Second Stage- Bayleef (Not Flaafy, that is Mareep's Evolution name) Third Stage- Meganium (Not Magnium) (If you need help with PokeMon evolution names, contact me plz!)
Also, "Strength" is misspelled. I think Heracross has it; it might be Machop, idk. It's spelled "Strengt" or something like that in the Pokémon Selector Pre-game lobby, and possibly in game as well (haven't gotten him yet so haven't gotten the chance to check).
We know what the different Chikorita evolutions is named. The fact that it says flaffy is just a bug, and that Meganium is named Magnium is a simple spelling mistake that will be fixed in the next update