Why didn't the Avengers use the Mind stone to change the minds of the Black Order or Thanos?
We know from The Avengers that Loki uses his Scepter (which houses the Mind Stone) to control the free will of Clint Barton & Erik Selvig.
Vision had the Mind stone with him all the time. Why didn't he use it to alter the minds of Black Order, or Thanos when Thanos held him during the end of Avengers: Infinity War?
Did Vision or any other Avenger not know how to use it?
Best Answer
Because they can't.
The Vision does not have complete control over the Mind Stone (at best he uses it as a "force beam")...he says as much to Wanda in Captain America: Civil War.
Certainly there is no indication he can control minds with it.
Vision: Do you know, I don't know what this is? Not really. I know it's not of this world...that it powered Loki's staff, gave you your abilities, but... its true nature is a mystery. And yet, it is part of me.
Wanda: Are you afraid of it?
Vision: I wish to understand it. The more I do, the less it controls me. One day... who knows?
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