Avengers: Infinity War may have killed off Carrie Coon’s character Proxima Midnight, but that didn’t stop directors Joe and Anthony Russo inviting the actress back for Endgame.
An aid to Josh Brolin’s Thanos in his pursuit to find the Infinity Stones, Coon’s Proxima Midnight was killed in spectacular fashion by Scarlet Witch (Elizabeth Olsen) as she used her floaty hand magic to launch her into a massive spiky wheel.
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https://www.digitalspy.com/movies/a33556742/avengers-dead-character-endgame/