Magic Scion of Lightning

You have been gifted with the powers of one of the magic scions of Mystra. You gain the following attributes.

You gain the physical attribute of your scars or tattoos leaking a blue energy, like lightning fills your insides. One or both of your eyes go gray like thunderous clouds. Furthermore, your hair is permanently frizzy or floating, as if you were just electrocuted. Your dexterity increases by 6 and your strength by 4, and all of your other stats increase by 2. Any spell or attack can do an extra 2d8 lightning damage.

You can use these next three abilities once per day each.

Heaven's Fury. You force the skies to bend to your will, drawing veins of lightning to strike down on one target within a 120ft range. They have to make a DC21 dexterity saving throw to avoid the volley of lightning or take 12d12 lightning damage and be knocked prone. If they succeed, they take half damage and are not knocked prone. Furthermore, anyone within five feet of the target takes 4d10 lightning damage.

Blightning. A shower of blinding lightning rains down in a 20ft radius circle. Every creature caught in this circle must roll a DC21 constitution saving throw or take 8d8 lightning damage. If they fail the saving throw, they are blinded until your next turn. If they succeed, they only take half damage and are not blinded. 

Sisters of the Storm. When you attack with the scion of lightning, you are bound together in battle. You are both under effect of the Warding Bond spell, and you can choose to hold your action until their turn and imbue their attack with 10d12 thunder damage and 10d12 lightning damage. The target of the attack has to roll a DC21 dexterity saving throw, but they still take half damage if they succeed. Furthermore, half of the damage done to the targeted enemy in this tremendous attack heals you.

Portals. You can open 1 portal a day to a location you've been before, even if it's on a different plane of existence.