Aethiphel's Font of Radiance

Long ago, the Old Gods of Eri'Wevil had a great war. One angel that was defeated in the war, Aethiphel, was banished from the heavens to the Material Plane, resulting in a planar ridge growing in the small city of Lamplight. This moment created the infamous Font of Radiance. This font gave its owner great divine power unrivalled by most anything known to mortals. This power maintains the connection from the material plane to otherworldly planes of existence.

Spellcasting. The item grants a +3 bonus to spell attack bonuses and spell save DC. While attuned to this item, you know the light, sacred flame, and spare the dying cantrips. You can also cast all 1st and 2nd level bard spells at will without material components. 

Radiant Blast. Being attuned to this staff changes the way Eldritch Blast functions; you no longer require a verbal component for the spell, but you cannot cast it unless you are wielding this amulet and using your other hand to satisfy the somatic component. Additionally, it now deals radiant damage instead of force damage. 

Godly Smite. This amulet has 10 charges. When you make an attack, you can spend charges to deal extra radiant damage on a hit. The damage is 1d10 per charge spent. The amulet regains 1d10 expended charges daily at dawn. When there are no charges left, roll a d20. On a 1, the gods withhold your power. For 7 days, the amulet can only be used as a mundane spellcasting focus. on a 2 or higher, nothing happens.

Divine Call. Once every 30 days, you can cast the wish spell. For 7 days afterward, the amulet can only be used as a mundane spellcasting focus, with all active benefits frozen save for the spellcasting boost and radiant blast (no Godly Smite or Divine Call for a week).

While attuned to the artifact, you can use an action to cast one 3rd-level spell (chosen upon attunement) from it. You do not have to have this spell prepared, but the spell must be on the barb spell list. After you cast the spell, roll a d6. On a roll of 1-5, you can 't cast it again until the next dawn.
You gain a +1 bonus to Armor Class.
You can use an action to cast one 7th-level spell(chosen upon attunement) from it. You do not have to have this spell prepared, but the spell must be on the barb spell list. After you cast the spell, roll a d6. On a roll of 1 - 5, you can 't cast it again until the next dawn.

Notes: Bonus: Spell Save DC, Bonus: Spell Attacks, Bonus: Armor Class, by the vessel of Aethiphel (or the person to server his connection to the FoR)