Amulet of the Black Coin

As an action, you can teleport yourself and 8 other willing creatures to a settlement of the Black Coin. Creatures resisting the teleportation must succeed on a DC 15 Constitution saving throw or take 6d6 psychic damage.

To activate the amulet, you must succeed a DC 30 Investigation Check or take 12d6 psychic damage. Once you activated the amulet, you negate the damage completely. Otherwise the damage dice half everytime you use the amulet, not falling below 3d6 psychic damage.

Notes: Teleportation, Necklace