Inverted Beacon

LATE GAME! Inverted beacons would be crafted using normal beacon & surrounding it with netherite. Range is the same, but instead of giving player buffs, it challenges them. Placing a mob head or mob-specific loot would cause the corresponding mob to only spawn within the range. Has a timer or specific amount of mobs it can spawn to prevent it from being completely farmable. Certain mobs from this beacon would NOT drop loot or unable to be spawned.