Mine Mine No Mi BlackBlades

Black Blades 
New Features
Leaderboard System

Added server-wide black blade leaderboard with persistent storage
/blackblade leaderboard command (accessible to all players)
Tracks total blades forged, top Kokutōshi, and recent forges
Advancements

"Kokutōshi" - Awarded when forging your own Black Blade (challenge frame, 500 XP)
"Inheritor" - Awarded when receiving a Black Blade forged by another player (goal frame, 200 XP)
Blade Naming Ceremony

Server-wide announcement when a player forges a Black Blade
Black Sweep Particles

Sweep attack particles are now dyed black/dark when using a Black Blade
Unbreaking V Effect

All Black Blades now have built-in Unbreaking V (83.33% chance to not consume durability)
No enchantment glint on Black Blades
"Black Blade" text displayed in tooltip (dark gray)
Backwards compatible with existing Black Blades
Improvements
Multi-Slot Progress Tracking

Progress now tracks in mainhand, offhand, and mouth slot (Cart Addon Santoryu support)
Per-item progress buffering prevents cross-slot progress contamination
Command Updates

/blackblade status now accessible to all players (no longer OP-only)
Status display updated: white header, dark gray "Black Blade:" label
Leaderboard uses "Top Kokutōshi" naming