Answered April 14th, 2019

Enes Kanter joins LaMarcus Aldridge and Bill Walton as the only Trail Blazers players to post at least 20p/18r in a playoff game in team history.

Who was the last Portland player with 20 points and 18 rebounds in a playoff game?
Interpreted as:
Who was the last Portland player with 20 or more points and 18 or more rebounds in a playoff game?