It has the Vital Spirit ability.
you need to get a slakoth to level 18 then it will evolve into vigoroth then you get vigoroth to level 36 then you get slaking. I suggest giving it an everstone as vigoroth, because his speed is amazing. i have both slaking and vigoroth, just to balance out speed and attack. what u do is send out slaking first, and have have it use hyperbeam, then if it doesn't one hit KO, send out vigoroth and you can finish him off quick. vigoroth usually goes first, depending on how you raise it. The bad thing is that both slakoth and slaking have the ability "truant", which is a really terrible ability! you only get to attack every other turn! even if u just use a potion or something, the next attack it will say "slakoth/slaking is loafing around" like a dumb baby! its really annoying! it took me like 20 turns to defeat a level 16 zubat!! i suggest just keeping vigoroth, because his ability is much much better!you need to get a slakoth to level 18 then it will evolve into vigoroth then you get vigoroth to level 36 then you get slaking.
yes Okay, you asked-WHEN does vigoroth evolve not-DOES vigoroth evolve. and, yes vigoroth evolves and, vigoroth evolves at level 36.
Hypnosis will not affect Pokémon with the ability Insomnia such as Noctowl or Vigoroth.
Vigoroth evolves into Slaking at level 36.
Vigoroth is a Normal type pokemon.
Vigoroth evolves at Lv.36.
In Pokemon Ruby, Vigoroth will evolve into Slaking at level 36.
Vigoroth evolves at level 36, into Slaking.
Vigoroth will evolve into a Slaking at level 36.
Vigoroth evolves at Level 36.
Vigoroth will evolve at level 36.
Vigoroth will evolve into Slaking when it reaches level 36.