Pietro Maximoff was a native of Sokovia who grew up with his fraternal twin sister, Wanda. The country, which was embroiled in constant war and strife, became the base of operations for a HYDRA cell operated by Wolfgang von Strucker, who recruited Pietro and Wanda to take part in a series of tests involving the Scepter, giving the twins superpowers. While his sister received a number of mental abilities, Pietro acquired the ability to move at supersonic speeds and other physical features. When HYDRA fell, the twins joined Ultron to continue their quest for revenge on Tony Stark over his weapons killing their family, but eventually switched sides and helped the Avengers when they discovered Ultron's true intentions. Pietro then fought in the Battle of Sokovia alongside all of the other Avengers, but later sacrificed his own life to protect Hawkeye and Costel, much to his sister's grief.
Movie: Avengers: Age of Ultron
Identity: Pietro Maximoff
Passive: After using any ability, Quicksilver next basic attack blinks him to his target's side, dealing Physical Damage while he recovers 20 Force.
Ability 1: Instastrike
Quicksilver rushes towards the specified enemy hero and attacks the target and nearby enemies with superhuman speed, dealing Physical Damage. Quicksilver cannot be target while he's attacking.
Ability 2: Hypercharge
Quicksilver charges in the specified direction, dealing Physical Damage to enemies in his path and recovering 25 Force for each unit hit. This ability can be stored up to 2 times.
Ultimate: Spatial Relativity
Quicksilver draws on his Force for 3 seconds to create a special space-time energy field that lasts 3 seconds. All units within the field will experince a slowdown in time by 80%.