Keybrand
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Obtained from
Classic
Expert
Master
Keybrand
Statistics
Type | |
---|---|
Damage | 105 (Melee) |
Knockback | 6.5 (Strong) |
Critical chance | 20% |
Use time | 20 (Very fast) |
Tooltip | Deals more damage to injured foes |
Rarity | ![]() |
Sell | 4 GC |
Research | 1 required |
Sounds
Use | |
---|---|
- Internal Item ID: 671




Entity | Qty. | Rate |
---|---|---|
![]() | 1 | 0.5%1% |
![]() | 1 | 0.5%1% |
![]() | 1 | 0.5%1% |

The Keybrand attacking a Target Dummy and a Mimic. Note the increasing damage based on the enemy's health.
The Keybrand is a Hardmode, post-Plantera sword which causes a sparkling visual effect upon damaging an enemy. It deals increased damage against enemies depending on their missing health, up to a maximum of 200% damage against enemies that have less than 10% health remaining. The Keybrand also has a 20% critical strike chance as opposed to the usual 4%. The Keybrand has a 1/200 (0.5%) / 399/40000 (1%) chance of being dropped by Blue Armored Bones, Hell Armored Bones, and Rusty Armored Bones in the post-Plantera Dungeon.
Its best modifier is Legendary.
Notes
- The following formulas are used when determining the amount of damage that will be dealt:[1]
- If the hit enemy has more than 10% HP remaining: [math]\displaystyle{ \mathit{damage} \times \left(1 + \frac{10}{9} \times \left(1 - \frac{\mathit{HP_{current}}}{\mathit{HP_{max}}}\right)\right) }[/math]
- This means that for every 1% of the enemy's health missing, the damage will be increased by [math]\displaystyle{ \frac{1}{90} }[/math].
- If the hit enemy has 10% HP or less remaining: [math]\displaystyle{ \mathit{damage} \times 2 }[/math]
- If the hit enemy has more than 10% HP remaining: [math]\displaystyle{ \mathit{damage} \times \left(1 + \frac{10}{9} \times \left(1 - \frac{\mathit{HP_{current}}}{\mathit{HP_{max}}}\right)\right) }[/math]
- In Don't dig up(Desktop, Console and Mobile versions) and Get fixed boi(Desktop, Console and Mobile versions) worlds, the Keybrand receives the following changes:
- Switched place with Katana. As a result, it is sold by the Traveling Merchant for 10 GC, instead of dropped by Hardmode Dungeon enemies.
- Damage decreased from 105 to 15.
- Sell value decreased from 4 GC to 2 GC.
Achievements

Robbing the Grave • “Obtain a rare treasure from a difficult monster in the dungeon.”
Obtain a rare item from an enemy in the post-Plantera Dungeon. (Desktop, Console and Mobile versions)
Category:
Explorer

Tips
- The Keybrand's ability to do more damage against previously injured targets makes it an exceptionally good choice against slow-moving, high-health targets such as Nailhead or the Ogre.
Trivia
- The Keybrand is based on the Keyblade, a weapon used in the action role-playing game series Kingdom Hearts. It bears an especially strong resemblance to the Keyblade named the Kingdom Key, which Sora wields.
- The Keybrand's visual effects when striking enemies are likely a reference to similar bright effects that appear when striking enemies with the Keyblade throughout the Kingdom Hearts series.
- Despite being a key, it does not unlock anything.
- The Keybrand is the best of the weapons that create no projectiles.
- Until 1.3.5, items had an unused internal name. Between its introduction and 1.3.0.1, the Keybrand's name was Lockblade,[2] which may have been its original name during development. This name was never visible in-game.
History
- Desktop 1.4.4.9: Sprite updated. Old sprite was
- Desktop 1.4.4:
- Damage increased from 85 to 105.
- Bonus critical chance increased from 17% to 20%.
- Reduced the maximum power of the scaling damage effect.
- Desktop 1.4.0.1:
- Damage increased from 70 to 85.
- Now deals up to 150% more damage based on how injured an enemy is.
- Desktop 1.3.1: Sprite updated.
- Desktop 1.3.0.1:
- Can now autoswing.
- Damage increased from 55 to 70.
- Knockback increased from 6 to 6.5.
- Critical strike chance increased from 4% to 17%.
- Use time decreased from 22 to 20.
- Desktop 1.2: Introduced.
- Console 1.02: Introduced.
- Switch 1.0.711.6: Introduced.
- Mobile 1.2.6508: Introduced.
- 3DS-Release: Introduced.