Answered June 30th, 2020

Damian Lillard put up 50 points when hitting 10+ three-pointers in Game 5 of the 2019 First Round versus the Thunder on April 23, 2019.

who was the first player with 50 points and 10 3pm in a playoff game
Interpreted as:
Who was the first player with 50 or more points and 10 or more 3pm in a playoff game?

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