Delta mega stones

Delta Budew Is in the Ultira Library of Ultira Town.

A Delta Budew is hidden within a secret room in the Far West Wing’s northernmost bookcase. The room is revealed by interacting with one of the books to the left of the boy staring at the bookcase.

Click on Delta Budew`s name to check his evolution needs and as advice bring a timid nature pokemon with synchronize in your party first place to give it a good nature.

If you have a pokemon that can set up new moon go for one that has the shadow dance ability.