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Onix

3-cost tank · Rock / Ground · melee · #12 of 13 3-cost Pokémon in our tier list.

Onix official artwork
Onix ★ ★★ ★★★

Synergies

Rock Rock types start with a shield worth 7/13% of their max HP. Active at 2 / 4. Other Rock Pokémon: Geodude, Aerodactyl, Rhyhorn.

Ground Ground types take 12/19/30% less damage. Active at 2 / 3 / 5. Other Ground Pokémon: Geodude, Nidoran♂, Diglett, Sandshrew, Cubone, Rhyhorn.

Abilities

In Kanto Tactics each star level has its own ability. It casts on its own when Energy is full (+10 Energy per attack, more when hit).

★ Onix: DigUnderground

Burrows and emerges next to the rearmost enemy, knocking it and those beside it airborne, and stays there. Then returns 40% of the damage it has taken to adjacent enemies. Power 240.

Ground · Physical · 60 Energy

★★ Onix: DigUnderground

Burrows and emerges next to the rearmost enemy, knocking it and those beside it airborne, and stays there. Then returns 40% of the damage it has taken to adjacent enemies. Power 346.

Ground · Physical · 60 Energy

★★★ Onix: DigUnderground

Burrows and emerges next to the rearmost enemy, knocking it and those beside it airborne, and stays there. Then returns 40% of the damage it has taken to adjacent enemies. Power 478.

Ground · Physical · 60 Energy

Stats

StarHPAttackSp. AtkDefenseSp. DefAtk speedCritRangeEnergy
★ Onix1,3376340133680.636%160
★★ Onix1,9089158196700.746%160
★★★ Onix2,65412680281720.856%160

Without items or synergies. A shiny copy (1 in 200 in the shop) has +10% HP, defenses and damage.

Comps with Onix

Where you fight it in the campaign

These Campaign trainers can field it: Pewter Gym · Brock, Nugget Bridge · Team Rocket, Rock Tunnel · Hiker, Victory Road · Black Belt, Elite Four · Bruno.