People: Use Custap Berry. It is my new favorite item. A kid raged because my Escavalier survived a 3 Bulk Up Drain Punch Gallade and killed it with Mega horn because of this amazing berry. It's only fair because I missed Mega horn on it twice in a row earlier anyways.
If below 25% HP, Custap Berry makes you move first next turn. It's deadly on my Escavalier.