Slacking has uber like stats but because it has the worst ability in the game, it gets sent to NU. have it in RU, with pursuit. this is quite rare but pursuit your opponents cofagrigus when it switches. slacking now has mummy. slacking is god. likewise, u can do this in doubles altho ur wasting a turn and hurting your cofag partner,(get it). anyway, u cn also have a pokemon with gastro acid in doubles alongside slackif, elminating its traunt. in gen 4 that pokemkn would be shuckle. it might not be the same. also, you now hage a move frost breath that always crits. have a teammate frost break a pokemon with anger point, maximizing its atk. i suggest uou have reflect and light screen before doing these. ps: can you attack ur teamate directly in gen 5? :S if not forge the last suggestion.LOL

EDIT: I found out that you can hit your teammate in gen 5 lol