Luka Doncic recorded his 8th triple-double of 2018-19, doubling the previous Mavericks rookie record and now just one behind Jason Kidd's 1995-96 overall single-season franchise record.

Who was the last Mavericks player with 8 triple-doubles in a season?
Interpreted as:
Who was the last Mavericks player with 8 or more triple-doubles in a season?