Although the Leader is fighting Captain America in the MCU, he has a very long history as the Hulk's primary enemy.

On Valentine’s Day, the Marvel Cinematic Universe is planning to return to theaters with the fourth entry of the Captain America series, Captain America: Brave New World. With Steve Rogers retiring following the events of Avengers: Endgame,

Captain America’s primary attack is Sentinel Strike, where he’ll swing his shield as a melee weapon. If he makes contact twice, he is able to throw his shield instead, giving his main offensive move some range.