Epic Boon: Dark Blessing

You gains the ability to temporarily merge with the shadows, becoming nearly invisible and immune to non-magical damage. This ability lasts for a short duration and has a cooldown period. You're surrounded by a dark, demonic aura that deals 1d6 necrotic damage to enemies within 5 feet of you, friendly fire off. The damage increases by 1d6 for every 2 levels you gain, up to a maximum of 11d6 at level 20. You gain a permanent boost to your Strength, Dexterity, and Constitution scores equal to 10% of Zaltharion's original scores in those attributes (3 Str, 2 Dex, and 3 Con).