The only moves that I can see that will be useful is his ability (Frisk) and his 4th move "Theif". By using frisk, you can steel a opponents item and keep it (once your not in battle). So, you have a great person for item farming. Though, you would have to do a lot of encountering to see who has items. A good person to choose to encounter is Cloyster (in X and Y's friend safari - for money) or other bug Pokemon who have honey - just for the item.
If you want to increase your item farming skill, keep a Pokemon in your party that knows "Pickup". Therefore, when your just walking around looking for these Pokemon, your Pickup Pokemon would be searching too. Some Pokemon that can learn this are meowth, aipom, phanpy, or linoone.
Check more: http://pokemondb.net/ability/pickup
P.S. - if you want, try to get a faster Pokemon with Theif and Frisk such as Gourgeist. Therefore, you can collect items faster without being knocked out. Overall, good strategy.
Hope I helped! :)