Armblade (Shield)

 Using mechanical engineering and ancient Elven magic, this shield can detect the surface structure of whatever it is activated against and form fits accordingly to the surface

As a bonus action, you can activate the armblade to create a small buckler shield, while shield is active you get +2 to your AC

As an action you can slam the active buckler shield into a surface to create a shield wall that takes the form of its respective surface, providing Half Cover for up to 1 minute

 

Shields require the Utilize action to Don or Doff. You gain the Armor Class benefit of a Shield only if you have training with it.

Notes: Half cover; +2 to AC and dex saves, Warding