Blood Thorn
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Obtained from
Classic
Expert
Master
Blood Thorn
Statistics
Type | |
---|---|
Damage | 34 (Magic) |
Knockback | 1 (Extremely weak) |
Mana | 20 |
Critical chance | 4% |
Use time | 33 (Slow) |
Velocity | 32 |
Tooltip | Summons blood thorns from the ground |
Rarity | ![]() |
Sell | 4 GC |
Research | 1 required |
Projectile created
- Blood Thorn
Sounds
Use | |
---|---|
- Internal Item ID: 4270 (Desktop, Console and Mobile versions)
- Internal Projectile ID: 756

The Blood Thorn attacking Target Dummies. Note its wall-piercing abilities.




Entity | Qty. | Rate |
---|---|---|
![]() | 1 | 12.5% |
The Blood Thorn is a Hardmode magic weapon that summons three penetrating Blood Thorn projectiles upon use, which erupt from solid blocks and platforms to damage enemies near the player's cursor. It has a 1/8 (12.5%) chance of being dropped by Hemogoblin Sharks.
Its best modifier is Mythical.
Notes
- A Blood Thorn projectile can hit up to 4 targets. It applies 25 ticks[1] of local invincibility frames on hit and lingers for 0.58 seconds (35 ticks) before dissipating.[2]
- As a result, one Blood Thorn projectile can only hit a single target twice.
- Blood Thorn projectiles spawn from random solid blocks or platforms in a circular area around the cursor.
- If a solid block obstructs the line of sight between the player and the cursor, then the projectiles are instead summoned from a circle around the obstruction point, facing the cursor.
- If there are no solid, valid blocks within a circular area around the cursor (e.g. if the player is both in midair and targeting a point in midair), then they are summoned from the player's hitbox instead.
- Blood Thorn projectiles cannot be summoned from background blocks (such as Smoke Blocks or Bubbles) or actuated blocks. They can, however, be summoned into or from liquids.
- Three Blood Thorn projectiles are summoned per press of the ⚒ Use / Attack key, similar to the Clockwork Assault Rifle.[3]
Tips
- The Ice Blocks summoned by the Ice Rod can serve as roots for the Blood Thorns.
History
- Desktop 1.4.4:
- Slightly increased the size of the thorns.
- Thorns now last 40% longer.
- Thorns can now sprout from platforms if they are in-range.
- Each projectile can now hit 4 times instead of 3.
- Fixed a bug that caused it to have unintended damage loss every time a thorn hit a target. Previously, the projectile's damage decreases by 30% each time it hits a target.
- Desktop 1.4.1:
- Damage increased from 29 to 34.
- Use time increased from 21 to 33 to avoid invincibility frames and consume mana less rapidly.
- Each projectile can now hit 3 times instead of 2.
- Invincibility frame changed from 10 ticks of global invincibility frame to 25 ticks of local invincibility frame.
- Desktop 1.4.0.1: Introduced.
- Console 1.4.0.5.4.1: Introduced.
- Switch 1.4.0.5.5: Introduced.
- Mobile 1.4.0.5.0: Introduced.
References
- ↑ A tick is a time unit countable by the software. Most of Terraria's updating logic happens every tick. A tick has the length of 1/60th of a second, hence there are 60 ticks in a second and 3600 ticks in a minute.
- ↑ Information taken from the
Desktop 1.4.4.9 source code, methods
SetDefaults()
inTerraria.Projectile.cs
andAI_157_SharpTears()
inTerraria.Projectile.cs
. - ↑ Internally, this is caused by the Blood Thorn's item attributes: It has a
useTime
of 11 and auseAnimation
of 33, which results in 3 (33/11) firings per key press. Information taken from theDesktop 1.4.4.9 source code, method
SetDefaults4()
inTerraria.Item.cs
.