Description:

Place the Griefguard Beacon to create a 32‑block protective field around it that prevents blocks from being altered or destroyed (explosions still damage entities but won’t break blocks inside the field); mobs are not repelled, the beacon announces activation, multiple beacons can overlap, and it drops itself when broken. While any player is within 32 blocks of any active beacon, the global mobGriefing gamerule is automatically turned off (Endermen stop picking up blocks, creeper explosions won’t break blocks anywhere); when no players remain in range, mobGriefing is turned back on. To use it, simply place beacons where you want local explosion-block protection and stand within 32 blocks of any beacon to suppress mob griefing globally (leave the area to restore normal mob behavior).