The Level 36 Evolution Mechanic
Vigoroth evolves into
Slaking upon reaching level 36. This level requirement remains identical across all Pokémon generations, from Ruby and Sapphire to Scarlet and Violet.
Players do not need any evolutionary stones, specific times of day, or friendship thresholds to trigger this evolution. You can level up
Vigoroth using standard battles, Exp. Candies, or a Rare Candy.
If you press B to cancel the evolution at level 36,
Vigoroth will attempt to evolve again at every subsequent level-up. Giving
Vigoroth an Everstone prevents the evolution prompt entirely.
The Ability Trade-off: Vital Spirit vs. Truant
Evolving
Vigoroth triggers a drastic shift in abilities and base stats.
Vigoroth possesses Vital Spirit, making it completely immune to sleep-inducing moves like Spore or Yawn.
Slaking loses this immunity and acquires Truant. This ability forces the Pokémon to loaf around every other turn, preventing it from executing any moves, including status moves or Protect.
In exchange for this severe handicap,
Slaking gains a Base Stat Total (BST) of 670, matching restricted legendary Pokémon like
Groudon and
Kyogre. Its base Attack skyrockets to 160, while its HP reaches a massive 150.
Competitive Verdict: Should You Evolve It?
Competitive Rating: 4/10 (
Slaking) vs 6.5/10 (Eviolite
Vigoroth). Evolving
Vigoroth into
Slaking is often a trap for singles formats.
Slaking operates strictly as a hit-and-run Wallbreaker, usually equipping a Choice Band to maximize its single-turn damage output.
The fatal flaw of Truant is that it grants the opponent a guaranteed free turn. Competitive players exploit this by switching in setup sweepers using Swords Dance, or simply using Protect to nullify
Slaking's attack.
Conversely,
Vigoroth serves as a reliable Setup Sweeper or Defensive Pivot in lower tiers. Holding an Eviolite boosts
Vigoroth's Defense and Special Defense by 50%, allowing it to utilize Bulk Up and Slack Off effectively without surrendering free turns.
Maximizing Slaking in Doubles Formats
Slaking belongs in specific Doubles formats where teammates can erase its Truant ability. The most common strategy pairs
Slaking with
Weezing holding the Neutralizing Gas ability.
Neutralizing Gas suppresses all other abilities on the field, allowing
Slaking to attack every turn with its base 160 Attack. Players also use moves like Skill Swap, Doodle, or Gastro Acid on their own
Slaking to remove Truant.
If you play standard Singles, keeping
Vigoroth unevolved with an Eviolite is mechanically superior.
Slaking is strictly for players willing to build a dedicated team around mitigating its restrictive ability.
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EVOLUTION CHAIN
SPRITE GALLERY
Related Pokémon guides
Competitive Movesets
Frequently Asked Questions About Vigoroth's Evolution
Does Vigoroth need a stone to evolve?
No, Vigoroth does not require an evolution stone. It evolves into Slaking naturally by reaching level 36 through battle experience or candy items.
Can you permanently change Slaking's Truant ability?
No permanent item or mechanic changes Truant. You can only bypass it during battle using moves like Skill Swap, Gastro Acid, or by pairing it with a Neutralizing Gas Pokémon.
Why does Vigoroth not have Truant?
Mechanically and lore-wise, the Slakoth line cycles through energy levels. Slakoth is lazy (Truant), Vigoroth is hyperactive (Vital Spirit), and Slaking returns to being lazy (Truant) despite its massive strength.
Is Eviolite Vigoroth better than Slaking?
In Singles formats, yes. Eviolite Vigoroth has better turn economy and setup potential with Bulk Up. Slaking is highly exploitable because Truant gives opponents free turns to set up or heal.





