I think we would have won 2018 South Africa test series if Pant was part of it! We had Saha & harmless Partiv Patel in that series. Even Jadeja was perhaps missing in those matches (Ashwin was preferred)! I remember that series was all about Run Rate shoot out. And India (courtesy: Pujara) faced more overs than South Africa in most innings, but scored less and eventually lost with small margins! Pant would definitely have made a difference there (I know he couldn't do much in the last South Africa series though he scored a century but that series was different with different demands)