Mask of Dendallen (Patreon)

Wondrous item, very rare (requires attunement)

This skull mask covers the face of the wearer and offers several benefits while worn. The mask has 5 charges and regains all expended charges each day at dusk. As an action, you can expend 1 charge to cast either the bestow curse, fear, speak with dead, or tongues spell using a save DC of 16. You have advantage on Constitution saving throws you make in order to maintain concentration on a spell you cast in this way. In addition, you can read all writing.

Curse. When you place this mask over your face, make a DC 16 Intelligence saving throw. On a success, you are aware of the curse's effects and can immediately remove the mask before it takes hold. On a failure, it magically latches on to your face and can't be removed unless targeted by the remove curse spell. You take 5d10 psychic damage when the curse takes hold, and the skin surrounding the mask is riddled with blacked veins and sickly gray skin. While you wear the mask, you cannot smell or taste anything and automatically fail any check relying on smell or taste. Your voice also changes. Use the table below to determine the new voice. In addition, whenever you roll a 1 on an ability check, saving throw, or attack roll, you take 1d10 psychic damage.

Food felt and tasted like ash. The world seemed less colorful. But I...I felt so much more powerful.