Blood Moon

Some nights, the moon bleeds — and every hostile mob becomes stronger and faster until dawn.

• 25% chance every nightfall, guaranteed at least once every 7 nights
• Blood-red BLOOD MOON title + ominous horn when it strikes
• All hostile mobs get Strength II + Speed I for the whole night
• 100% vanilla — no mods, no resource pack
• Multiplayer safe

Commands

• /function bloodmoon:config/toggle — enable/disable (OP)

Requirements

Minecraft: Java Edition 26.3

Drop the zip in your world's datapacks folder and /reload. Pray the moon stays white...