I often read about something called Hidden ability. I know that each Pokemon can have 1 of 1 or 2 abilities, however, I noticed something called Hidden Ability, wonder whats that.
these are examples.
1-Both Pikachu and Seaking have Lightningrod.
2- Ludicolo having Own Tempo.
3- Bastiodon having Sound Proof.
and many many others.
Source: Bulbapedia ( check every pokemon and see the ability there )
How do they function in battle? is it as obvious as normal abilities?
thank you so much.