However, in contrast to its seemingly 'death bringer' personality, it is not always openly destructive, as it left in peace when it was calmed down by Xerneas and its Fairy Aura, but not before restoring the lake and then, flying away.
Its single-minded and highly wild nature was shown when Dace recalled flashbacks about what has happened to the Forest and after it woke up with a furious frenzy, destroying the whole forest just to seek out the ones who have awaken it during its slumber. Yveltal appears to be a very destructive and single-minded Pokémon, which is logic, due to its status as the Legendary Pokémon of Destruction and being the opposite of Xerneas.