MCU: 15 Most Powerful Items In Marvel's Phase 3
4. The Mind Stone
Were The Mind Stone not embedded in Vision's forehead, it would be more simple to simply group all of the Infinity Stones together as a single entity, but its personification as the robo-messiah changes the game somewhat.
The Stone has already proven to be a hell of a power throughout its previous appearances in the MCU. As the heart of Loki's sceptre, it was capable of manipulating targets to the will of the wielder (basically enchanting them to become subservient zombies, could produce power blasts and basically empowered both Quicksilver and Scarlet Witch.
And then when combined with Ultron's shell, some of Thor's lightning power and JARVIS' brain, the Stone retained the same powers, but now allows Vision to fly, to manipulate matter and to phase through other matter effortlessly.
It's going to be unfortunate when Thanos realises he has to remove it from Vision's forehead.