Schlüsselschwert Mod

• Added the Schlüsselschwert keyblade to the Combat tab; it is fireproof, single-stack, and forged from netherite-level material.
• Hits are extremely strong (built around +20 hearts of extra damage) and ignite targets; right-click fires a blazing projectile on a short cooldown.
• Holding the blade continually grants heavy buffs: +20 hearts of health (Health Boost), Strength III, and Fire Resistance so you can brawl in lava or flames.
• Custom keyblade texture and handheld model are included so it looks unique in inventory and in-hand.
• The mod is marked as client-side; use it in singleplayer or on servers that accept client-only content. Unequipping the sword lets the temporary bonus hearts fade after the effect duration.

Known notes: The damage and health boosts are intentionally high and may trivialize encounters; adjust if you want a gentler experience.