Nope.The least damage a Pokemon can do is a lv.1 burned Shuckle with -6 zero IVs in attack,timid nature,no EVs in attack,with attack lowered all the way down using constrict against a lv.100 chilan berry aggron with maxed defense IVs,252 defense EVs,impish nature,reflect,and x4 defense.Sorry.There is nothing weaker than that for now.Maybe there will something weaker when Pokemon X and Y come out.Hope I helped. -LegendUser