14
train lotad to level 14 and it should evolve
Lv 14
Lotad evolves into Lombre at Level 14.
Al of the version exclusives in Sapphire don't evolve except Lotad. Lotad-Lv 16-Lombre-Water Stone-Ludicolo
You dont 'find' Lombre within the game Ruby. You can trade it from Sapphire or Emerald, or evolve a Lotad at level 14 which you also get from Sapphire and Emerald.
It evolves at level 15 into Lombre.
nowhere,you have to get a lotad or lombre from sapphire and, make lotad evolve to lombre and give a water stone to get ludicolo.
lombrea level 14 water stone to evolve it in to ludacolo
Pikachu evolves into Raichu, but the only way to evolve it is a thunderstone. It won't evolve if you don't have one.
He Doesnt.
Lotad evolves at level 14. LOTAD --lv14-->LOMBRE --water stone--> LUDICOLO
level 36 after you evolve it (generation 5)