Spearhead Mitchell Starc led the Australian pace attack with three wickets Monday to put the visitors in the driving seat on day three of the second Test against Pakistan in Karachi. The lanky left-armer used reverse swing to devastating effect, taking 3-29 as Pakistan were bundled out for a paltry 148 in reply to Australia's mammoth first innings of 556-9 declared. Despite a big 408-run lead, Australia did not enforce the follow-on and at close were 81-1 in their second innings to take their lead to 489 with nine wickets intact.