In Avengers Assemble Season 2 Episode 12 Black Widow controls 4 infinity stones (Reality, Space, Time and Mind). However she didn't collapse with all that power. Perhaps she should have disintegrated, being a mere human she cannot survive with such power let alone being able to control it. Captain America and Red Skull are more capable of doing so but did fail to possess even 1 infinity stone, which cause a near death experience to Super Humans. How was she able to do it without any special container (Gauntlet, etc).