MCU: 15 Most Powerful Items In Marvel's Phase 3

15. Captain America's Former Shield

Cap's trusty shield has been through a lot: it's not as impressive as some of the more magical items in the MCU, or as devastating on the face of it as some of the other blunt force objects, but this weapon is basically the metal version of Cap himself. It's resilient, resourceful (in that it can be used as a frisbee/boomerang as well as combining with Mjolnir, Vision's power blasts or Iron Man's heat blasts) and basically invulnerable.

As an indictator of its power, it sent Thor packing when he slammed Mjolnir into it, so it's obviously worthy of a slot. And it seems to be protected by weird logic, since it's made of Vibranium, and yet it was able to withstand the exact same combo blast that melted Ultron's Vibranium shell.

The key thing about the shield now is that it's actually not in Cap's possession: it's likely that it will be once again by the time Thanos gets his hands on the Infinity Stones (or tries), but for now it's in the hands of General Ross and his underlings. You have to wonder whether it will be appearing in someone else's hands before the end of this Phase...