Fan art for an episode of Marvel Studios' What If…? brings Deadpool into the Battle of Earth in Avengers: Endgame, and sees the antihero taking down the Mad Titan Thanos singlehandedly. After the multiverse was unleashed at the start of the MCU's Phase 4, Marvel Studios developed the animated series What If…? to explore alternate realities, featuring twists on pre-established storylines from the MCU's past. What If…? season 1 saw Peggy Carter become a super soldier instead of Steve Rogers, many of Earth's Mightiest Heroes become zombies, and Infinity Ultron wreak havoc on the multiverse, and the What If…?'s upcoming season 2 is set to delve into more new universes.

https://screenrant.com/deadpool-defeats-thanos-mcu-what-if-art/