The Akatsuki was a group of powerful S-ranked rogue ninja who worked as mercenaries, but their true goal was to capture the Tailed Beasts in order to change the world. Aside from Zetsu, every single member of the group was a Kage-level ninja, which means that they were both strong and smart, but when it comes to pure intelligence, some members were smarter than others.
Deidara Specialized In Tricks, Misdirection, & Calculated Gambles
Each Akatsuki member joined the organization in a different way, and Deidara joined after Itachi defeated him in battle. Deidara possessed Explosion Release, which is a rare chakra nature that allows its user to create explosive chakra, and that is why he was part of the Stone Village’s Explosion Corps.
Deidara stole a forbidden jutsu from his village when he defected, and it allowed him to mold clay with mouths on his hands and chest. He used those mouths to mold the clay into animals and other things that he was able to control and detonate, and it was because of these clay creations that he was able to trick and misdirect his opponents.