Yes it evolves to slaking which is a super powerful pokemon.
Chat with our AI personalities
Where you get slakoth in Pokemon ruby is in the petalburg woods. Trust me
lvl. 18 to Vigoroth lvl. 36 to Slaking
In Ruby/Sapphire/Emerald the chances of cathing a Slakoth is 5%. Just walk around Petalburg Woods for a while, you'll get one eventually.
Slakoth evolves into Vigoroth at level 18.
A slakoth evolves into vigoroth at level 18, then vigoroth evolves into slaking at at level 36.