Reality Stone

This Stone has the ability to control reality and matter. It can bend the laws of physics and convert matter into dark matter. The stone was mostly used by the Dark Elves.

 The leader of the Dark Elves of Svartalfheim, Malekith, used the Reality Stone to create the weapon called the Aether. Every five-thousand years, the Convergence causes the Nine Realms to become aligned. In 2988 B.C., Malekith planned to use this event to release the Aether and plunge the nine realms into eternal darkness; however, the Asgardians intervened and took the Aether from the Dark Elves by force, watching as the race was apparently decimated in battle. Bor then had the Aether hidden away where no one could find it, and over the following five millennia, its story faded from known history.  Σχετική εικόνα

In 2013, near the beginning of the Convergence, a portal opened up to where the Aether was located; Jane Foster happened to walk through this portal and, through curiosity, made contact with it, causing it to become active and infest Foster's body, using her as a host. After arriving back on Earth, Foster exhibited an immensely powerful energy projection when being touched on the arm, and was taken to Asgard by Thor where the Aether was discovered by Odin. During this time, Malekith sensed the Aether's activity and attempted to retrieve it by attacking Asgard. In the end, through the sacrifice of Frigga, Malekith and his army left before he could obtain the Aether.

 Αποτέλεσμα εικόνας για aether malekith mcu Later, when access to the Bifrost Bridge had been restricted,
Thor, with a dying Foster, got Loki to take them through
a hidden passageway to Svartalfheim. After getting there,
they confronted Malekith and through various circumstances,
the Dark Elf drew the Aether from Foster and into himself and
left the planet. Both parties then arrived on Earth, where Malekith
used the Aether to battle Thor across worlds during the
Convergence, which resulted in Malekith's destruction.

Several years later, Thanos traveled to Knowhere and took the Aether from Collector, solidifying it into the Reality Stone and adding it into the Infinity Gauntlet. He used it to create an illusion to trap the Guardians of the Galaxy and then briefly rendered himself invisible while talking to Gamora before revealing himself and using the Reality Stone to easily turn Drax and Mantis into pieces of matter and then transformed Quill's upcoming blast from his blasters into bubbles before warping away.