>>39727655This should help middling speed mons in Trick Room the most. Claydol, for example, is my only option as a setter, but it is actually one of the speedier Ground-types, so it doesn't perform well under Trick Room itself.
Mamoswine comes to mind as another Ground Mon who could like this item. He's always a good Mon to bring along, but his 80 base speed makes his Truck Room performance poor.