A couple battles.
I think the fastest way to evolve rioulu is to put an exp share on him then go to Pokemon league and fight the Pokemon he will get tons of exp and he evolves into lucario at level 19 so it shouldn't take that long
Buneary evolves when its happiness value is at 220.
you have to take it into the eterna forest, find the moss covered rock and level up your eevee there. then it will evolve into leafeon.
This tradition started a long time ago.
It needs to be level 16 to evolve.
how do bavteris change and evolve
Bacteria.
No.
Pretty easy. They don't.
2 years
It'll evolve at level 40. It may take awhile.
it takes time
It evolves by trade,not level. So, it's your choice when you to evolve it.
A couple battles.
All you need to do it is evolve it with a Fire Stone. No leveling up is required, but recommended.
One sneeze.