Crown of Thorns

A Crown of Thorns is a circlet made of either thorns or nails that pierce into their users head. When the user is attacked, the thorns will sink into their skin, drawing blood. This amplifies any damage that the user takes, however, those who strike them share in the pain.
== Variants ==
More powerful variants exist that inflict no additional pain upon their user and cause more harm to the attacker than the attacked.
=== Cursed Crown ===
The Cursed Crown variant of the Crown of Thorns only maintains the negative effect of taking additional damage and lacks the positive effect of sharing it with others entirely. 
== History ==
It is said that the crown was originally worn by a king who was forsaken and sentenced to an excruciatingly painful death by his own people. The pain inflicted by the crown is not from the user's vengeance, but from from the attackers guilt.