You know what one of my favorite sets is? Choice Band Scrappy Slaking (I haven't played much . Slaking @ Choice Band Trait: Scrappy Adamant Nature (+Atk, -SAtk) - Hi Jump Kick - ExtremeSpeed - Trick - Filler This set is like most Slaking, hits really hard with +2 ESpeed and stuff. The only difference is that you can now hit Giratina (and other ghost I guess) pretty hard, especially since you'll be getting 2 hits on it (since it's going to switch into you, thinking "Yo, I'm like the best Slaking counter, right?"). Hi Jump Kick is to hit Steel- and Rock-types. Trick is to deposite your item to someone when you no longer need it. Finally, the last move is filler, but I like Drain Punch because Slaking has good bulk and the recovery is good. Recover can also be used for recovery, but it is only useful after you trick your band. Crunch can also be used, but it's really not needed, seeing as Scrappy Espeed hits Giratina hard enough iirc. Sacred Fire could be neat as another way to hit Steel-types.