I reached diamond from being a gold player last act and this act im trying to maintain the diamond elo and perhaps even climb it. For those immortals and high diamond players out there, any tips? (I have better aim than game sense)

Is it normal for new accounts (~lvl 5) to play against last season Immortal? He had an immortal gun buddy for season 3, dropped over 40 kills. I’d say it was definitely not a purchased account.