Plasma shield

this is my first idea, please don't say anything bad.

The plasma shield is an accesory found in locked chests in the hardmode dungeon, to find this accesory you must keep locked a golden chest and open it in the hardmode and one of the items in the chest will become a plasma shield.

the plasma shield if used created a shield around the player big like 6 blocks, with the plasma shield 30% of the attacks will dissapear at the contact of the shield , if an enemy enters the shield it will become damage

Crafting
the Plasma shield can be used to craft :

Poison sield