Amulet against Extra Planners

5 total charges. If all charges expended, d20. 2 or less and the amulet breaks. 1d4 charges at dawn.

This amulet cannot be worn by an extraplanar nor can it leave the plane of existence upon which it was found. If inside a container, that container cannot leave the plane of existence it resides in. An attuned creature cannot be unwillingly removed from its home plane, and if they willingly are moved this amulet drops to the ground.

Detect Good and Evil, 1 charge. If this spell is on your spell list and prepared, its range is instead 120 feet, though can still be blocked by normal means As an action that expends 2 charges, you and all creatures within 30 feet of your choice when you take this action gain a +2 bonus to AC and saving throws against fey, fiends, celestials, and aberrations for the next minute, and they may reroll any one damage dice per spell or attack if that spell or attack is targeting an extraplanar.

These effects ignore anti-magic auras and cannot be dispelled. While this effect is active, unusual energy courses through affected creatures that may be noticed by perceptive foes. If the amulet is specifically targeted by an attack, it has an AC of the wearer plus five.

The wearer must then make a constitution save as if the amulet had 10 Constitution, factoring in any bonuses if the creature is extraplanar. On a failure, the bonuses end and any remaining charges within the amulet are expended. Magic Circle, 3 charges. If powdered iron and silver are not provided or are insufficient, it costs an additional charge per missing metal.