Decidueye's Hidden Ability, Long Reach, prevents effects caused by contact moves. This Hidden Ability only appears in the Rowlet evolutionary line. Long Reach means that Decidueye won't take recoil damage from moves like Brave Bird.

How do I get a Decidueye hidden ability?

The Alolan Starters - Decidueye, Incineroar and Primarina - are finally available with their Hidden Abilities via the Pokémon Bank. Trainers with a subscription to the transfer service will be gifted these three Pokémon simply by logging-in.

What abilities can Decidueye have?

Decidueye can nock and fire an arrow at an enemy in a tenth of a second, so its battles are decided in the blink of an eye. This Pokémon has no Pokédex entries in Brilliant Diamond and Shining Pearl. The air stored inside the rachises of Decidueye's feathers insulates the Pokémon against Hisui's extreme cold.