Hadron Engine
Creates an Electric Terrain when entering battle, and boosts Special Attack while active.
Full effect
Turns the ground into Electric Terrain when the Pokémon enters a battle. The futuristic engine within the Pokémon also boosts its Sp. Atk stat on Electric Terrain.
In game description
Turns the ground into Electric Terrain when the Pokémon enters a battle. The futuristic engine within the Pokémon also boosts its Sp. Atk stat on Electric Terrain.
Pokemon with Hadron Engine
Using Hadron Engine in Cobblemon
Abilities are passive and always active, so Hadron Engine costs you nothing to run. If it is marked hidden on a species above, expect it to be harder to obtain: servers differ in whether hidden abilities come from breeding, an Ability Patch, or events.
See the Pokedex for which abilities each species can have, and IVs, EVs and breeding for how to actually pass one down.