Palladium Shield

The  is a Hardmode accessory that is obtained from the Treasure Bag dropped by Paraffin in Expert Mode. It grants the player the Protective Reflexes buff, when harmed by an enemy. The buff increases defense by 20. The buffs length depends on the amount of health lost (1 second per 3 HP). You cannot obtain or prolong the buff while it is still active.

When equipped and not hidden, an item icon will appear on top of the character, while the buff is active.

Trivia

 * The tooltip is a reference to the game "Risk of Rain".