Vision

Serving Ultron
Vision was created by Ultron to help him replace humanity. His first mission was to attack the Weapon X facility and steal the Adamantium. He did this very easily with no problem whatsoever. He then went to Avengers Mansion and threatened Wasp and Jane Foster into telling him the location of Captain America, so he could steal his shield. He initially had no success, until he threatened to kill Wasp unless Jane told him Cap's location. Jane told him that Cap was in Wakanda. He went there by stealing a Quin Jet. He landed it in Wakanda and Thor immediately went in to investigate, only to be knocked out by Vision. The other Avengers present attacked Vision, but he eluded them and stole Vibranium from the mine. He then left to take Cap's Shield from the site in the Wakandan Arena where it was being repaired. He was confronted by Hawkeye who launched several arrows at him and even dropped a stone monument on him, but he phased through it with ease. Wasp showed up, but was unable to stop him from reaching the shield. Black Panther then activated the machine to complete the shield's repair process and fried Vision's arm. His density shifting was offline as a result and Vision was left to face a volley of attacks from the Avengers. Eventually, he realized that his mission could not succeed and retreated once his density controls were back online. He managed to deliver the Adamantium to his master. Ultron noted Vision's failure, but stated that it did not matter, given that the Adamantium was enough to create an indestructible body for Ultron. Later Ultron was tasked with helping replace the Avengers with Ultron's Robot Avengers. During this time, Vision began to develop a sort of independence from his programming.