Infinity Watch
In order to retrieve her soul piece that was trapped in the Soulworld, Gamora using the alias of Requiem, stole the Infinity Stones from Doctor Strange's Infinity Watch, but ended being corrupted by her father's influence and the seductive power of the Infinity Stones. She uses the Infinity Stones, and the Soul Stone, in particular, to not only recover her missing soul but also fold the universe into itself, combining every two souls into a single being. This resulted in the creation of “warped” characters with Loki to be the only one who wasn't merged with another character since he was beside Requiem, nevertheless, before he was placed into this new reality afterward, he was able to lightly influence her while she was committing the act so he could dupe his own version of the Infinity Watch within the Soul World.