Moody() is a Pokémon ability introduced in the fifth generation. It is exclusively a hidden ability.
At the end of the turn, Moody raises one of the ability holder's stats by two stages and lowers another stat by one stage. It can affect accuracy and evasion of the Pokémon.
The ability will not attempt to lower a stat at its minimum (-6 stages) or increase a stat at its maximum (+6 stages). If all stats are already at +6 stages, Moody will only decrease a random stat.
Pokémon with the Ability
As a Hidden Ability