Naseem Shah dismantled the Babar Azam-led Team White by returning impressive figures of 5-55 before Asad Shafiq shone with the bat on a pitch that has proven to be conducive to swing bowling.
Pacers from both teams, engaged in an intra-squad warm-up game at the Incora County Ground in Derby, have been among the wickets and causing problems for the batsmen.
Naseem's prized scalps included Imam-ul-Haq, Haider Ali and Shadab Khan on day one before he resumed his sharp bowling to dismiss the last two batters on the second morning.
The teenage speedster, who warned England against underestimating his skills before departing for the tour, bowled with decent pace and demonstrated good consistency to keep threatening the opponents for an extended period of time.
Naseem's heroics were ably supported by Mohammad Abbas, whose tally of three wickets also boasted the dismissal of Babar.
Left-arm seamer Wahab Riaz remained wicketless whereas fast-bowling all-rounder Faheem Ashraf could not find success with the ball either.
In reply to Team White's total of 249, the Azhar Ali-captained Team Green scrambled to 162-5 at the end of the day's play, which was interrupted by two rain stoppages.
The overcast, murky conditions favoured Shaheen Afridi and Sohail Khan as the duo cashed in and inflicted damage on the opposition.
Sohail prised out opener Abid Ali as the latter's glance only landed in the safe hands of wicketkeeper Mohammad Rizwan, Team White's top-scorer with 54 not out.
The steady progress achieved by Azhar and Shafiq was disrupted by the guile of Shaheen as the young quick outfoxed his Test skipper with a good length delivery that caught his outside edge.
Next man in Iftikhar Ahmed survived a couple of chances in his adventurous stay at the case and ultimately perished off the bowling of Sohail for a 69-ball 31.
Sohail added another wicket to his splendid bowling display when he trapped Sarfaraz Ahmed lbw.
Amidst the faltering partners on the other end, Shafiq stood firm in his patient innings and elegantly prevailed in the tough conditions.
He reached his fifty just before bad weather prompted an early close as Pakistan hope to get further time in the middle for the following days in the first of their two practice matches ahead of the three-Test series against England.