Shuckle could easily get some setups going on, it will most likely be able to sustain two attacks before going off, unless they have like a +4 attack/SpA boost. This gives you a good chance to set up stealth rocks and a sticky web, add in toxic and maybe infestation unless you want to chesto resto. Although you have to watch out for the taunts, so infestation will have slightly more use than chesto resto, but chesto resto allows you to be able to set up if again if they have a defog or rapid spinner on their team.