Sukuna

Sukuna client mod features (Minecraft 1.21.1, Fabric):

• Added five items: Sukuna’s Finger (consumable), [He] Severing Slash, [Pal] Carving Storm, [Fuga] Cursed Flame, and the Fukuma Mizushi Shrine. Finger is edible from the food tab; the rest live in the combat tab.
• Eating the finger grants all four ability items plus temporary strength, speed, and fire resistance buffs.
• [He] slash fires a straight cursed slash in your look direction (about 32 blocks), dealing 20 damage to hit mobs and breaking blocks up to obsidian hardness while leaving slash particles.
• [Pal] slash cleaves everything in a tight 3×3 area around you for 50 damage, with a small knockback burst and slash particles.
• [Fuga] is a two-step flame: first use charges it, second use launches a flame pillar at the targeted block (or point), burning and hitting nearby mobs for heavy magic damage every 0.5s. When used inside an active domain, the pillar grows and a five-pulse domain-wide burn triggers.
• The shrine item toggles a domain field around a point behind you; while active it auto-spawns rapid slashes on nearby mobs and provides visuals. Use again to disperse it.

Implementation notes:

• Item logic is written for client-side Fabric but performs world-side effects in singleplayer/integrated worlds; no dedicated-server entrypoint is declared.
• Custom textures and models were added for all five items under the sukuna namespace, with English item names.
• Stateful items (like Fuga’s charge) use the new data component CUSTOM_DATA storage introduced in 1.21.

Known limitations and tuning:

• Domain and flame values are scaled down for stability (e.g., domain radius ~32 blocks for ~20 seconds; flame pillar radius ~10–14 blocks and height ~35–50) instead of the lore-sized 500×500×500 and 200×200×200 destructive effects.
• Effects rely on server-side logic available in singleplayer; using them on a multiplayer server without the mod will not work.