Amethyst Beacons

An amethyst beacon could be a different version of a beacon that allows players to get enchantments within a certain radius of the beacon. It would require a regular beacon in the middle, an enchantment table underneath the beacon, and amethyst in the remaining spots. New special enchantments could be made for this beacon (Ex: a shield enchantment that allows you to do a shield bash, creating knockback on the player) This would open a whole new world of enchantments