It's an ability that increases Accuracy of moves by 30%. It also has an out-of-battle effect that happens when a Pokmon with it is at the head of your party...it increases the chance of finding wild Pokmon holding an item. Whether or not you can obtain all of these in the game is all up to you.
CRD. Type:Abbreviation. Definitions 1. Abbreviation for chronic respiratory disease.
What does QED mean? Q.E.D. stands for Quod Erat Demonstrandum, a Latin translation of the phrase $\ddot{o} \pi \varepsilon \rho \quad \ddot{\varepsilon} \delta \varepsilon \iota \quad \delta \varepsilon \hat{\iota} \xi \alpha \iota$ with which Euclid concluded most of his proofs. It means what was to be proved and signifies the proof has been concluded.