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Obsidian Greatsword

meta-legend edited this page May 28, 2026 · 3 revisions

Obsidian Greatsword

The Obsidian Greatsword is a slow heavy weapon built around armor pressure and area control.

Item Stats

Stat Value
Main-hand attack damage modifier +8
Main-hand attack speed modifier -3.2
Main-hand attack knockback modifier +1
Durability 768
Enchantability 10

Crafting

In recipe diagrams, x marks an empty slot.

oco
obo
xsx
Key Ingredient
o Obsidian
c Crying Obsidian
b Blaze Rod
s Netherite Sword
x Empty slot

This recipe makes the Obsidian Greatsword a late-game weapon that builds from an existing Netherite Sword.

Heavy Armor Pressure

Strong melee hits with the Obsidian Greatsword punch through roughly half of the target's armor and armor toughness.

Details:

  • The effect only applies when a player swing is at 90% or more attack strength.
  • It calculates bonus damage based on the difference between normal armor reduction and armor/toughness reduced by 50%.
  • It is most noticeable against armored targets.

Grand Slam

Right click with the Obsidian Greatsword to use Grand Slam.

Requirements:

  • The greatsword must not be on cooldown.
  • The user must have at least 65% attack charge.

Effects:

  • Radius: 3 blocks.
  • Damage: 4 to nearby living targets.
  • Horizontal knockback: 1.5.
  • Vertical knockback: 0.35.
  • Cooldown: 80 ticks, or 4 seconds.
  • Durability cost: 12.
  • The user's current vehicle is excluded from slam damage and knockback.
  • Creates obsidian chip particles and smoke.

If the swing is not charged enough, the item shows red action-bar feedback instead of slamming.

Enchanting

The Obsidian Greatsword is tagged for normal melee weapon enchantments and durability enchantments. It is also specifically tagged for sweeping enchantments.

Expected useful enchantment families:

  • Sharpness-style melee damage enchantments.
  • Fire Aspect.
  • Looting.
  • Sweeping-style enchantments.
  • Unbreaking and Mending.
  • Curse of Vanishing.

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