Magnus isn't very good at pinball, compared to Hearthstone, and it's been a while since Hearth has been able to give him a lesson (i.e., play while Magnus watches avidly). He sticks his tongue out of the corner of his mouth in focus, takes a deep breath, squares his shoulders, and slams those buttons like crazy. This is why he's not as good as Hearth, who is always calm and laser-focused about it.