Evolving Ekans into Arbok at level 22 does not change its ability options at all. Intimidate and Shed Skin are both available on Ekans from the moment you catch or hatch one — evolution doesn’t add either of them [1][2]. So the real question isn’t when Arbok “unlocks” Intimidate. It’s whether Intimidate is even the ability worth keeping, because the answer flips depending on how you play: Doubles OU data shows Intimidate picked over Shed Skin 99.983% of the time [6], while singles players building a physical Coil sweep argue the opposite is true [7]. Here’s the exact evolution level, the stat jump it buys, the moveset gains, and which ability actually wins for your format.
How to Evolve Ekans Into Arbok (Level 22, No Special Conditions)
- Catch or hatch an Ekans. No stone, trade, held item, time of day, or friendship threshold triggers this evolution in any mainline game — it’s pure level-based [1][2].
- Level Ekans to 22. The evolution fires automatically on the next level-up, whether that comes from a wild battle, a trainer fight, or Rare Candy / Exp Candy [1][2][3].
- Check which regular ability you rolled. Intimidate or Shed Skin is set at capture (or via an Ability Patch later), not chosen or changed at evolution [1][2].
- Don’t go hunting wild Arbok directly if you’re short on time. In Scarlet/Violet, Arbok is a “Very Rare” spawn in Rocky biomes, while Ekans is the far more common catch — raising one is faster than finding the evolved form in the wild [8].
- Learn Crunch for free. It’s bundled into the evolution itself, giving Arbok immediate Dark-type coverage before you’ve taught it a single TM [5].
Verified against Pokémon Scarlet/Violet Generation IX data (Serebii and Pokémon Database), current as of 2026. The level-22 trigger is a core mechanic that hasn’t changed since Generation I — always recheck ability rolls and TM availability before a new competitive season, since those do shift.
What the Level 22 Jump Actually Buys You
The stat gain isn’t evenly spread — Attack jumps the hardest, which tells you what role Arbok is built for [1][2]:
| Stat | Ekans | Arbok | Gain |
|---|---|---|---|
| HP | 35 | 60 | +25 |
| Attack | 60 | 95 | +35 |
| Defense | 44 | 69 | +25 |
| Sp. Attack | 40 | 65 | +25 |
| Sp. Defense | 54 | 79 | +25 |
| Speed | 55 | 80 | +25 |
| Total | 288 | 448 | +160 |
Attack getting the single biggest boost (+35 against every other stat’s +25) confirms Arbok as a physical attacker with utility bolted on, not a pure tank. But the movepool doesn’t hand you the tools to use that Attack stat right away: Gunk Shot, Arbok’s strongest Poison STAB at 120 power, doesn’t arrive naturally until level 63 [3][5]. If you’re playing through the story rather than grinding to the 60s, teaching Poison Jab (80 power, 100% accuracy) as a TM is the practical fix in the meantime [3][5].
Contrast this with a Pokémon like Machoke, which needs a trade rather than a level threshold to become Machamp in the core series games — see our Machoke into Machamp evolution rules for how that trade-lock actually works. Ekans has none of that friction. It’s a straight level-up, arguably the simplest evolution condition in the game — no gender split either, unlike Combee, whose outcome depends entirely on which sex you’re holding (see our Combee evolution guide). Every Ekans you raise reaches the identical Arbok, options included.
The Intimidate Myth: Evolving Doesn’t Unlock It
Both Ekans and Arbok share the exact same ability pool: Intimidate or Shed Skin as the regular options, Unnerve as the hidden ability [1][2]. Nothing about reaching level 22 adds, removes, or upgrades any of them — whichever ability your Ekans has is the ability your Arbok keeps.
That makes the mechanism worth spelling out plainly, because most write-ups treat Intimidate as an Arbok-specific selling point when it isn’t one. Intimidate lowers the opposing Pokémon’s Attack by one stage the instant Arbok switches in — and only then. It doesn’t reapply while Arbok stays on the field, and the opponent can simply switch their own Pokémon out to reset it [2][7]. Shed Skin works on a completely different clock: roughly a 1-in-3 chance, every single turn, to cure whatever status condition Arbok is carrying [1][2]. One is a single event at switch-in; the other is a running process for as long as the battle lasts.
The Real Trade-Off: Intimidate vs. Shed Skin by Format
That timing difference is exactly why competitive data splits by format instead of landing on one universal answer.
Doubles favors Intimidate, decisively. In tracked Scarlet/Violet Doubles OU teams, Intimidate shows up on 99.983% of Arbok sets against just 0.017% for Shed Skin [6]. The reason is structural to doubles battles: Intimidate hits both opposing Pokémon on the field at once, not one, so a single switch-in generates twice the Attack-lowering value it would in a 1-on-1 format. That’s a big enough return that it swamps Shed Skin’s status protection almost entirely in this format [6].
Singles Coil-sweep sets lean the other way. Players building Arbok around Coil — a move that raises its own Attack, Defense, and accuracy together — argue for Shed Skin instead, and the reasoning holds up mechanically: Intimidate only fires once, and a prepared opponent can play around it by switching, while a burn picked up mid-sweep cripples a physical attacker’s damage output for every remaining turn of the fight. Shed Skin’s rolling cure chance directly protects the exact game plan a Coil set depends on [7].
| Player Type | Recommended Ability | Why |
|---|---|---|
| New player | Intimidate | Broad, “set and forget” defensive value across many random encounters — you don’t need to plan around it [8] |
| Casual player | Intimidate | Same reasoning; story-mode battles rarely last long enough for Shed Skin’s per-turn odds to matter |
| Hardcore doubles optimizer | Intimidate | Near-universal competitive pick — hits two targets per switch-in, backed by real usage data [6] |
| Hardcore singles Coil-sweeper | Shed Skin | Protects a sustained physical attacker from burn across a multi-turn sweep; Intimidate’s one-time value is easily played around [7] |
Is Arbok Actually Worth Raising?
Honestly, it depends on what you’re measuring against. Arbok’s 448 base stat total sits well below what most fully evolved Pokémon carry, and nowhere close to the 600 total every pseudo-legendary Pokémon shares by design — that comparison alone tells you Arbok was never built to be a top-tier investment [1][2]. In the current Doubles OU tournament data referenced above, Arbok’s overall usage rate sits at effectively 0% [6], meaning almost nobody is building a serious competitive team around it right now.
None of that makes it a bad Pokémon to raise for most players — it just narrows who it’s actually worth it for:
- New or casual players: yes, worth it. A cheap, early Poison-type that resists Grass, Fighting, Poison, Bug, and Fairy attacks covers a lot of common story-mode matchups, and Ekans is an easy catch [8].
- Completionists: yes, catch or hatch one regardless — it’s a Pokédex entry either way, and doing it through Ekans is far faster than hunting the rare wild Arbok spawn directly [8].
- Competitive singles/doubles optimizers: only as a specialist. It’s a real doubles Intimidate-support pick or a niche singles Coil-sweeper, not a default team slot — go in expecting a role player, not a carry [6][7].
Best Build If You Do Raise It
The standard physical set pairs Poison STAB with Ground coverage specifically because Poison’s common answers — Steel- and other Poison-types among them — resist Poison damage but not Ground [3][8]. Gunk Shot (120 power, 80% accuracy) or the more reliable Poison Jab (80 power, 100% accuracy) covers the STAB slot, Crunch arrives free on evolution for Dark coverage, and Earthquake (taught via TM) punches through the Steel- and Poison-resistant walls that would otherwise shut Arbok’s offense down entirely [3][5][8]. Coil is available at level 56 if you want a self-buff instead of a fourth attacking slot [3][5].
Nature-wise, Adamant suits the straightforward physical attacker; Jolly is the competitive default when Speed matters more, matching the 91.7%-usage EV spread seen in tracked Doubles OU sets [6][8]. Special sets are a weaker option across the board — 65 base Special Attack is Arbok’s worst offensive stat, well behind its 95 Attack [1][2].
Frequently Asked Questions
Does evolving Ekans into Arbok change its ability?
No. Both stages share the identical Intimidate/Shed Skin/Unnerve pool, and nothing shifts at level 22 — the ability your Ekans already has is the one Arbok keeps [1][2]. Treat any guide that frames Intimidate as an “Arbok reward” with suspicion; it’s available from the very first catch.
Is Intimidate or Shed Skin better on Arbok?
It depends entirely on format, and the data actually disagrees by context rather than settling on one universal winner. Doubles teams pick Intimidate almost unanimously because it debuffs two opponents per switch-in [6]. Singles players running a Coil-sweep set argue for Shed Skin instead, because Intimidate’s value is a one-time event an opponent can play around by switching, while a burn during a sweep does lasting damage to your own output [7].
Is Arbok good in Scarlet/Violet?
Not as a default competitive pick — its 448 base stat total and effectively 0% Doubles OU usage confirm that [1][2][6]. It’s genuinely useful in a specific role (a doubles Intimidate lead, or a budget singles Poison-type with solid resistances), just not as a Pokémon you build a team around by default [8].
What’s the fastest way to get Ekans to level 22?
There’s no way around the level requirement itself, since no stone or trade shortcuts it — keeping Ekans in your active rotation through normal battles gets it there just as fast as any grinding method, and Rare Candy or Exp Candy work too since the evolution triggers on any level gain, not specifically battle experience [1][2].
Sources
- Bulbapedia — Ekans (Pokémon): bulbapedia.bulbagarden.net
- Bulbapedia — Arbok (Pokémon): bulbapedia.bulbagarden.net
- Serebii — Arbok #024 (Scarlet/Violet Pokédex): serebii.net
- Serebii — Ekans #023 (Scarlet/Violet Pokédex): serebii.net
- Pokémon Database — Arbok Level-Up Moveset (Generation 9): pokemondb.net
- Pikalytics — Arbok, Doubles OU usage stats: pikalytics.com
- Pokémon Database PokéBase — Arbok: Shed Skin or Intimidate for a Coil sweeper set?: pokemondb.net
- Game8 — Arbok Location, Evolution, and Learnset (Pokemon Scarlet/Violet): game8.co
I've been playing video games for over 20 years, spanning everything from early PC titles to modern open-world games. I started Switchblade Gaming to publish the kind of accurate, well-researched guides I always wanted to find — built on primary sources, tested in-game, and kept up to date after patches. I currently focus on Minecraft and Pokémon GO.