You can't in ruby you need to get one from leafgreen or firered.
You can find a Slugma in Routes 15, 16, and 17 in the Kanto region.
firey path
On routes 16, 17, 18
Slugma evolves into Magcargo.
Most people think that you can't find slugma in Pokemon ruby but you can in Fiery path.
Slugma, Torkoal and maybe another Slugma.
Slugma have always evolved at level 38.
there is no best place, but you can find numel, torkoal,slugma in grass near the sandstorm
Level 39
Yes at level 40.
You can't in ruby you need to get one from leafgreen or firered.
Torchic,slugma and toarkoal.
You can find a Slugma in Routes 15, 16, and 17 in the Kanto region.
You have to get it in the enterlink
it doesn't evolve. slugma evolves into magcargo at level 38
I dont know if im right, but she has a Toarkal, Camerupt, maybe Numel, and Slugma