>>97212070Thanos is toying with them in an attempt to impress Death. The very next panel shows Thanos shattering Cap's shield (the Comic book adamantium/vibranium/unknown one, not the MCU vibranium one). At this point he'd already beaten and/or killed most of Earth's heavy hitters.
Ever seen a cat play with a mouse? Same principle... the cat could easily kill the mouse with no effort, but it is having fun letting the mouse think it can escape.
