How does Doctor Strange have the Time Stone after endgame?

A Decoy Made To Protect The Universe It makes strategic sense for Strange to keep a decoy of the locket on him, as few people know that Thanos destroyed the Infinity Stones. And by keeping up the illusion that he still has the Time Stone, Strange is able to maintain a powerful presence against the MCU’s enemies.

What if Thanos didn’t know Doctor Strange used the time stone?

What Thanos didn’t know was, Strange DID use the Time Stone. Unlike the series of events which took place during his fight with Dormammu, it happened off screen to save you from the tedium of watching the millions of permutations (14,000,605) where Doctor Strange engages Thanos, loses to Thanos, dies and then the cycle repeats.

What exactly was Doctor Strange doing in Infinity War?

Admittedly, there is a lot of debate over what exactly Doctor Strange was doing in Infinity War – after seeing 14,000,605 futures, he decided to give Thanos the Time Stone, enabling him to ultimately kill half the universe – but this one aspect seems a cut-and-dry oversight. Even Thanos himself questions it during their fight.

Will Doctor Strange try the Dormammu time loop trick again?

Just two years later, Doctor Strange found himself fighting another near unstoppable force who threatened mass destruction: Thanos. And while he used all manner of magical spells on the Mad Titan, he seemingly never considered trying the same Dormammu time loop trick again.

Can Strange Strange use the Time Gem to reverse time?

Strange showed during his use of the Time Gem (back in his own movie) that it caused great strain to the user to interact with the temporal process. Reversing the flow of time in a local area should be a devastating strain to an individual. It also caused great strain to the fabric of reality, thus it was not recommended for daily use.

https://www.youtube.com/watch?v=tLucRwb5pPE