Thorns

Thorns is a Paladin Skill in Diablo II.

Lore
''An eye for an eye is sometimes not enough. Those who would strike the emissaries of the Light had best take warning, for retribution shall be swift and certain. The might of your blows shall be felt a hundred fold unto you!''

General Information
This aura will do severe damage to any monster or player that hits the user (or affected ally) with any melee attack, dealing damage to them: a flat value and based on a percentage of the damage they did to the user. Thorns will only work if the enemy actually hits the user however; if the monster is unable to hit users due to high defense, high shield blocking, high level compared to the monster, or if they're often killed before they have a chance to do melee damage, then Thorns is not very effective.

Thorns is useful when fighting bosses, as it give much more damage than taken, which in most cases is significant.

The damage returned is physical and can be reduced by physical damage resistance, lowering the effectiveness of this aura in hell difficulty where monsters have 50% physical resistance. Curses such as Amplify Damage and Decrepify greatly increase this aura's effectiveness, particularly on nightmare difficulty and hell difficulty. It also stacks with the Iron Maiden curse, which operates similarly to Thorns.

Necromancer's Iron Golem always has this Aura, but it only affects themselves.

There are also a few items that give this Aura, including the runewords and.