||The subject of this article was removed from World of Warcraft in patch 5.0.4.
- This includes items and quests that can no longer be obtained or are now deprecated.
- The in-game information in this article is kept purely for historical purposes and should probably not be under any other categories.
- For the Pet Battle ability, see [Thorns].
- Level druid ability
- 30 yd range
- 17% of base mana
- 45 sec cooldown
- Instant cast
- Thorns sprout from the friendly target causing X Nature damage to attackers when hit. Lasts 20 sec.
- We can learn much from the elder vine, which threatens with barbs the hand that would trim it back.
Thorns is a druid buff spell that can be cast on yourself and friendly players. Any time a target affected by Thorns is hit in melee, the attacker takes nature damage.
- The damage dealt by Thorns is increased by the casting druid's spell power at the time of casting. Each tick receives about 3.3%.
- The Druid Tier 1 armor set, Cenarion Raiment, boosts the effectiveness of Thorns. The three piece bonus increases the damage caused by 4 and the duration by 50%.
[Glyph of Thorns] is a major glyph that reduces the cooldown of thorns by 20 seconds. If managed properly, the downtime of thorns would be only ~5 seconds. Thus this is an excellent option for a major glyph slot if there is constant incoming melee damage.
Tips and tactics
- Cast Thorns on tanks to help them keep aggro on multiple enemies. Always keep Thorns up on yourself when you are tanking to provide some additional threat.
- You generally should not cast this on casters while in a group, as the damage caused by Thorns does increase aggro, making it harder for others to pull mobs off them.
- Thorns will act as a buffer against dispels in PvP, giving enemies a chance to dispel your Thorns instead of some more important buff.
- The damage caused by Thorns can, due to lag, sometimes break crowd control effects like [Hibernate] and [Polymorph]. Because of this, if you or someone in your party has latency of over 500, you may want to avoid using Thorns if you are using any in-combat crowd control.
- Thorns can be very useful when being attacked by an enemy that has very low health as they will often die quickly from the Thorns damage without requiring your attention. Many creatures summon minions that have few hit points - Thorns will effectively dispatch these enemies for you.
- As Thorns benefits from your spell power at the time of casting, you can activate any trinkets that increase spell power and equip items with high spell power before casting it to maximize the effect.
Refreshing and Spell Power
When refreshing Thorns on yourself, you may sometimes get the error message, 'A more powerful spell is already active.' This is understandable if the initial buff was cast by a different druid with a higher rank of the spell or talents to increase its potency, but may be confusing when it was you who cast the spell. The reason for this error message is that Thorns benefits from the druid's spell power at the time it was cast, not at the time of the hit. Thus, casting Thorns on yourself while at a higher spell damage (such as with a trinket activated) will make it impossible to refresh the buff without first right-clicking it off if your spell power has dropped down. Some buffs and items may temporarily increase spell power, causing this to occur. If using similar items or abilities with short cooldowns, it would be best to max out spell power before casting Thorns to get the maximum effect out of it.
- Patch 4.0.3a (2010-11-23): Beginner tooltip revised to no longer imply the spell could be kept up at all times. In addition, Thorns damage has been reduced by 60%.
- Patch 4.0.1 (2010-10-12): Duration reduced from 10 minutes to 20 seconds. Damage increased significantly.
- Hotfix (2009-05-22): "The bonus damage from spell power on the Druid ability Thorns has been reduced by half."
- Patch 3.1.0 (2009-04-14): This spell will now properly use the druid's spell power to determine its scaling instead of the target's spell power.