Blox Fruits Sword Upgrade Guide 2026 – All Upgrades & Best Builds

Upgrading your sword is essential for maximizing damage. This guide covers every sword upgrade path, materials required, and the best builds for PvP and grinding.

How Sword Upgrades Work

Swords can be upgraded using materials (Bones, Fragments, Beli). Each upgrade increases damage and unlocks new moves. Some swords have multiple upgrade paths.

All Sword Upgrade Paths

1. Saber V1 → Saber V2

How to get: Complete the Saber Expert quest in First Sea.

2. Dark Dagger (Upgradeable)

3. Shark Saw (Upgradeable)

4. Koko (Upgradeable)

5. Triple Katana (Upgradeable)

Best Sword Builds

Build 1: PvP (Speed & Stun)

• Sword: Dark Dagger (upgraded)
• Fighting Style: Godhuman
• Fruit: Kitsune or Dough
• Accessory: Pale Scarf
• Why: Fastest sword + stun-lock combos.

Build 2: Grinding (AOE & Damage)

• Sword: Shark Saw (fully upgraded)
• Fighting Style: Electric Claw
• Fruit: Buddha
• Accessory: Ghoul Mask
• Why: Best AOE for grinding NPCs and sea events.

Build 3: Boss Fighting (DPS)

• Sword: Triple Katana (fully upgraded)
• Fighting Style: Dragon Talon
• Fruit: Magma or Dragon
• Accessory: Pale Scarf
• Why: Highest DPS for boss fights.

Where to Farm Upgrade Materials

• Bones: Kill NPCs (First Sea bandits are fastest).
• Dark Fragments: Darkbeard boss (night spawn).
• Shark Teeth: Sharkman NPCs (Second Sea).
• Fragments: Sea events (Ship Raid, Sea Beast).
• Koko Shards: Raid bosses (Third Sea).
• Katana Shards: Hidden quests (Third Sea).

Pro Tips

• Prioritize Saber V2 first – it's the easiest upgrade and best early sword.
• Save fragments – they're used for both sword upgrades and awakening fruits.
• Focus on one sword at a time – don't spread materials thin.
• If you PvP, invest in Dark Dagger – it's the best PvP sword.
• If you grind, invest in Shark Saw – best AOE.