Why does Captain America's shield always come back to him? It's simply down to Cap's training, and the fact that the super-soldier serum improved his reflexes. He's mastered the use of that shield to the point that he can angle it just right so that it'll always come back to him.

What can break Captain America's shield?

Destruction of Captain America's shield had remained a rare event until the 2000s, when alternate timelines and universes saw it broken repeatedly. It was broken by King Hyperion, Ultron, Namora, King Thor, Valkryie, and the Serpent. There have even been instances where normal-looking arrows seemed to have pierced it.

Does Captain Americas Shield absorb energy?

Captain America's shield is famous for absorbing tremendous amounts of kinetic energy, from an artillery shell to a punch from the Hulk – keeping Cap not only safe, but on his feet. ... Sometimes the shield seems to easily absorb tremendous force; but sometimes it is damaged by the attacks of Cap's most powerful foes.