On the Contary pokemon PB your set and nature leaves something to be desired
Nature: Jolly, Evs 4 hp, 252 attack, 252 speed
Waterfall(STAB a must have move)
Agility(Boosts speed so it can sweep)
X-scizzor(A must use move to cover grass types)
Return/Rock slide/Brick break(Return for power and acc. or rock slide for coverage or Brick break for more reliable coverage)
Item: Life orb or leftovers depending on if you want him to hit harder or last longer
Agility is only avalible HG/SS+
for physical sweepers choose Jolly over Adamant the extra speed can save your life I should know as the master of speed.