The F refers to Fujita, Because it's the Fujita scale that's used to measure how violent tornadoes can get. Ratings range from F1 to F5. F1 means a rather weak twister, about 70 to 90 m.p.h., and an F5 is the mother of all dust devils. While F2s, F3s and F4s are also really dangerous (F4s are almost as destructive), they are popcorn farts compared to F5s.
Froakie (Japanese: ã±ã­ãã Keromatsu) is a Water-type PokÃ©mon. Froakie has the ability Torrent and the hidden ability Protean. It evolves into Frogadier starting at level 16, which evolves into Greninja starting at level 36. Froakie is one of eighteen starter in PokÃ©mon: Brick Bronze available.
This is useful as some PokÃ©mon will learn moves that cannot be learnt in a later form or if you want a PokÃ©mon to learn a move earlier than usual. For example, Gabite. If you let Gible evolve into Gabite at level 24 it will learn Dragon Rush at level 49, but if you keep Gible it will learn Dragon Rush at level 37. Sometimes it doesn't matter if you let it evolve or not.