#2, Doctor Strange uses his magic to turn Thanos into a baby, with Tony Stark subsequently bringing Baby Thanos home to raise with Pepper Potts.
#1, Doctor Strange uses his Cloak of Levitation to ensnare Thanos’ arm, thrust him into a portal and then closes that portal so it slices off his Infinity Gauntlet-wearing hand.
Finally, Thor uses his axe Stormbreaker to chop of Thanos’ arm, thus preventing the Mad Titan from using the Infinity Stones to wipe out half of all life in the universe.
After opening with Gamora attempting to trick Daddy Thanos into walking into a lake of acid lava to secure the Soul Stone (a futile attempt given how Thanos can use the Reality Stone to turn anything into bubbles), How Avengers: Infinity War Should Have Ended depicts five different ways the Infinity War heroes could have defeated the Mad Titan before he unleashed universal genocide.
…
How Avengers Infinity War Should Have Ended - Animated Parody