Stats & Training
Attack and HP carry most of Zweilous's stat budget. Speed's the obvious dump stat. Tough to catch and yields 2 Attack EVs. Follows a slow 1.25M XP grind.
The two heads do not get along. Whichever head eats more than the other gets to be the leader.
After it has eaten up all the food in its territory, it moves to another area. Its two heads do not get along.
Zweilous Weakness
Type-wise, Zweilous takes extra damage from Fairy, Ice, Fighting, Bug, and Dragon. Watch out for Fairy attacks, those deal 4x damage. Psychic moves do nothing thanks to a full immunity. With 6 resistances, the defensive profile is strong.
| Damage | Types |
|---|---|
| 4x (Critical) | Fairy |
| 2x (Weak) | Ice, Fighting, Bug, Dragon |
| 0.5x (Resist) | Fire, Water, Electric, Grass, Ghost, Dark |
| 0x (Immune) | Psychic |
In Omega Ruby & Alpha Sapphire, Latios can KO Zweilous with Draco Meteor (174-205%). Hitmontop threatens a KO with Close Combat (110-129%).
 Latios DragonPsychic | A | |
Recommended Build AbilityLevitate ItemLife Orb NatureTimid Moves
Damage vs Zweilous View Latios builds →Draco Meteor 2x174-205%KO | ||
 Hitmontop Fighting | B | |
Recommended Build AbilityIntimidate ItemEjectbutton NatureAdamant Moves
Damage vs Zweilous View Hitmontop builds →Close Combat 2x110-129%KO Feint9-11% | ||
 Whimsicott GrassFairy | B | |
Recommended Build AbilityPrankster ItemLeftovers NatureBold Moves View Whimsicott builds →
| ||
 Volcarona BugFire | B | |
Recommended Build AbilityFlame Body ItemLum Berry NatureModest Moves
Damage vs Zweilous View Volcarona builds →Giga Drain14-17% Flamethrower26-31% | ||
 Mamoswine IceGround | B | |
Recommended Build AbilityThickfat ItemChoice Scarf NatureAdamant Moves
Damage vs Zweilous View Mamoswine builds →Earthquake56-67% Ice Shard 2x46-55% Rock Slide28-34% | ||
Omega Ruby & Alpha Sapphire Evolution
Partway through Deino's chain. Zweilous still has another evolution ahead before reaching Hydreigon. For breeding, takes forever to hatch with a decent partner pool via one egg group. HP has grown the most so far (+20), but there's still another 180 stats to gain in the final evolution. View every chain in the Evolution Chart.
How to Evolve
Breeding
Breed with Zweilous to get Deino eggs using 50 partners from the Dragon egg group. Notable egg moves include Assurance, Astonish, Dark Pulse and 7 more.
Omega Ruby & Alpha Sapphire Zweilous Best Moveset
Hustle and Eviolite give Zweilous staying power beyond its evolution stage. Adamant nature boosts Attack, max Attack and Speed EVs set the spread, and the pre-evolution bulk actually works here.
Best Build
Zweilous best EVs are Attack and Speed
Physical Sweeper Moveset
- Crunch
- Ice Fang
- Aqua Tail
- Outrage
Recommended Teammates
Moves
Hard to wall, honestly. Zweilous threatens 10 types beyond its own STAB, with Normal and Fire standing out. Pair that with Draco Meteor and Outrage and switchins need to think twice.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
Reminder Moves
How to Get Zweilous in Omega Ruby & Alpha Sapphire
You're catching Deino first, not Zweilous. Deino appears at solid rates in the encounters below. The step cards map the full 2-stage line with evolution methods between each stage.
How to Obtain Zweilous in Omega Ruby & Alpha Sapphire
To get Zweilous, start by catching Deino through walking encounters at Lv. 19-40. The chain covers 1 catchable stage before reaching the final form.
Step 1Catch DeinoMeteor Falls - Area 1Alpha SapphireGrass Lv.19 Water60%MidDexNav chainMeteor Falls - Area 1Omega RubyGrass Lv.19 Water60%MidDexNav chainMeteor Falls - Area 2Alpha SapphireGrass Lv.40 Water60%LateDexNav chainMeteor Falls - Area 2Omega RubyGrass Lv.40 Water60%LateDexNav chainMeteor Falls - Area 3Omega RubyGrass Lv.40 Water60%LateDexNav chainMeteor Falls - Area 3Alpha SapphireGrass Lv.40 Water60%LateDexNav chainMeteor Falls - Area 4Omega RubyGrass Lv.40 Water60%LateDexNav chainMeteor Falls - Area 4Alpha SapphireGrass Lv.40 Water60%LateDexNav chain
Step 2Zweilous ✓
Zweilous Guide
Zweilous is meant to evolve into Hydreigon. At 420 BST, the stats aren't there for competitive play yet. Pre-evolution Pokemon rarely hold up against fully evolved threats.
In Omega Ruby & Alpha Sapphire, Zweilous's biggest threats include Gardevoir (Fairy), Kyurem (Ice), and Machamp (Fighting), all carrying super-effective STAB moves. Gardevoir is the most dangerous since Fairy moves deal 4x damage. Bug and Dragon-type attackers are also a problem. With 5 weakness types, most competitive teams carry at least one counter.
Hustle is the go-to ability for Zweilous. It strengthens physical moves to inflict 1.5× damage, but decreases their accuracy to 0.8×. It's Zweilous's only ability.
At base 58 Speed, it won't be moving first often. On offense, Zweilous is a physical attacker with base 85 Attack. Defensively? Enough bulk to take a hit or two.
Game Availability
Zweilous joined the series in Black & White and has been available in 8 titles so far. With 6 generations of appearances, it's established itself despite the later start.
Click a game to view version-specific details
- Gen 1Y
Yellow - Gen 1RB
Red & Blue - Gen 2GS
Gold & Silver - Gen 2C
Crystal - Gen 3RS
Ruby & Sapphire - Gen 3FRLG
FireRed & LeafGreen - Gen 3E
Emerald - Gen 4Pt
Platinum - Gen 4HGSS
HeartGold & SoulSilver - Gen 4DP
Diamond & Pearl - Gen 5BWDebut
Black & White - Gen 5B2W2
Black 2 & White 2 - Gen 6XY
X & Y - Gen 6ORAS
Omega Ruby & Alpha Sapphire - Gen 7USUM
Ultra Sun & Ultra Moon - Gen 7SM
Sun & Moon - Gen 7LGPE
Let's Go Pikachu & Eevee - Gen 8SwSh
Sword & Shield - Gen 8PLA
Legends: Arceus - Gen 8BDSP
Brilliant Diamond & Shining Pearl - Gen 9SV
Scarlet & Violet - Gen 9LZA
Legends: Z-A - Gen 10WW
Winds & Waves