Cleansing Crystal

You imbue a crystal with magic to absorb harmful influences.While carrying the crystal, when you would take damage as a result of a spell or magical effect in the space you occupy when you start your turn, reduce the damage you take by 2d6. When you would make a saving throw to avoid an effect based on the space you occupy when you start your turn, you have advantage on the saving throw.

During the spell’s duration, when you would take necrotic,poison, or psychic damage, you can end the spell as a reaction to gain resistance to the triggering damage type until the end of your next turn.