Bonsly is a baby Pokemon from Gen 4 — it can't hold its own in battle yet. The payoff is Sudowoodo, which is where the real competitive value lives. Worth raising if you need one on your team. 5 type weaknesses to keep in mind.
Bonsly's all-in on Defense at the expense of Sp. Atk. The physical lean is obvious from the bars. Yields 1 Defense EV and follows a medium-fast 1M XP curve.
Its tears elicit sympathy from those who see them, but do not be deceived! This expulsion of body water is merely a physiological mechanism for keeping itself in good health.
Bonsly Weakness
FragileType-wise, Bonsly takes extra damage from Water, Grass, Fighting, Ground, and Steel. It resists 4 types, giving it decent defensive coverage. Bonsly's physical bulk (base 95 Def) helps cushion physical weakness hits, but special attackers are the bigger threat.
Bonsly is the baby form here. It evolves into Sudowoodo after learning Mimic, but you can't breed it directly. Hatch one by breeding the evolved forms instead. Evolving adds up to 120 stat points total.
How to Evolve
Best Build
Legends: Arceus uses different battle mechanics.
Competitive build content is not applicable for this game. Select a main series game for builds.
Bonsly's options are limited here. You've got Head Smash and Rock Slide for STAB damage, but there isn't much beyond Rock hitting power. TMs help fill gaps, though the kit stays tight.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
2 encounter spots for Bonsly at decent spawn rates starting from mid-game routes. Best and Earliest sort options below help narrow down your approach based on odds vs. Accessibility.
Best Locations
Bonsly isn't fully evolved, so it's not built for competitive play. You'll want to evolve it into Sudowoodo to unlock its full potential. At 290 BST, it's a stepping stone rather than a team anchor.
Bonsly's biggest threats include Swampert (Water), Roserade (Grass), and Machamp (Fighting), all carrying super-effective STAB moves. Ground and Steel-type attackers are also a problem. With 5 weakness types, most competitive teams carry at least one counter. At base 10 Speed, Bonsly won't outrun any of these threats so switching to a resist is usually the safer play.
Bonsly evolves into Sudowoodo after learning Mimic. Bonsly is the base form of this evolutionary line.
Sturdy is the go-to ability for Bonsly. It prevents being KOed from full HP, leaving 1 HP instead. Its hidden ability Rattled can work in specific setups. Rock Head is the other option — pick based on what your team needs.
Bonsly fills the trick room role. It's a physical attacker with base 80 Attack. Base 10 Speed is low. Priority moves or Trick Room are the way to go.
Bonsly appears in 13 games, including Platinum, HeartGold & SoulSilver, and Diamond & Pearl.
Bonsly first appeared in Diamond & Pearl and has been available in 13 games across 6 generations. Obtainable through catching or hatching as a base form in most titles where it appears.
- Gen IY
Yellow - Gen IRB

Red & Blue - Gen IIGS

Gold & Silver - Gen IIC
Crystal - Gen IIIRS

Ruby & Sapphire - Gen IIIFRLG

FireRed & LeafGreen - Gen IIIE
Emerald - Gen IVPt
Platinum - Gen IVHGSS

HeartGold & SoulSilver - Gen IVDPDebut

Diamond & Pearl - Gen VBW

Black & White - Gen VB2W2

Black 2 & White 2 - Gen VIXY

X & Y - Gen VIORAS

Omega Ruby & Alpha Sapphire - Gen VIIUSUM

Ultra Sun & Ultra Moon - Gen VIISM

Sun & Moon - Gen VIILGPE

Let's Go Pikachu & Eevee - Gen VIIISwSh

Sword & Shield - Gen VIIIPLA
Legends: Arceus - Gen VIIIBDSP

Brilliant Diamond & Shining Pearl - Gen IXSV

Scarlet & Violet - Gen IXLZA
Legends: Z-A
