Phlegethos’ Pick

Found by Darius in the cave under the Tiny Island.

A tiny red stinger with many barbs standing in all directions. It feels warm to the touch.

This little stinger from Hell’s fourth layer is only too happy to help, for a price…

When using it as thieves’ tools to open a lock you get a +1 on the skill roll but also take 1d4 damage.

Once per Long Rest you can beseech the Pick for more help and gain Advantage on your roll. If you do so, you take damage equal to the difference between the two d20 results.