Combo fighting appears as Quicksilver zipping around the target rapidly. Basically a lot of pseudo-teleporting attacks with a ghost speed trail behind him. His attacks have long reach like kamala's but instead of stretching it's dashing. Alternate attacks can send ghost images of him out to attack nearby targets for some AoE, giving the illusion of Quicksilver attacking multiple people really quickly. Also more combos/effects off the dash attack compared to everyone else.
Ranged attack is him dashing toward the target really fast and snapping back or seeing him flinch and a ghost image of him is sent out.