The Infinity Saga might be over, but it left a bunch of questions that the Marvel Cinematic Universe hasn’t answered yet, and one of the biggest ones is why Thanos gave the only Infinity Stone he had, the Mind Stone, to Loki in The Avengers. The events of the Infinity Saga are what shaped the MCU, and while its main players and objects are now gone, the impact of Thanos and his destructive plans can still be felt in the MCU’s Phase 4 – and while the MCU has been solving some mysteries and plot holes left by the Infinity Saga, there are many others that continue to be debated among viewers and making way for different theories.
Thanos was the main villain of the Infinity Saga, and his purpose was to acquire all six Infinity Stones along with the Infinity Gauntlet so he could bring balance to the universe by wiping out half of life in it. Thanos made his first appearance in the post-credits scene of The Avengers, but he was the real mastermind behind the conflict in the movie, as he was the one who planned the Chitauri invasion through an alliance with The Other and Loki. Thanos gave Loki the scepter that contained the Mind Stone, the only Infinity Stone he had at the time, which Loki used to control the minds of various humans, most notably Hawkeye and Erik Selvig. However, the newly formed Avengers defeated Loki and the Chitauri, and the scepter was taken by HYDRA under the disguise of S.T.R.I.K.E.