Your ability to weave shadows allows you to have access to the darkness spell for no cost.

While in dim light or darkness, you can take the hide action as a free action.

You can choose between having the teleport ability as a bonus action or the lightning strike attack action.

Teleport:

You can teleport, along with any equipment you are wearing or carrying, up to 30 feet to an unoccupied space that you can see as a bonus action. You can do this once per short rest. This increases to twice per short rest at level 5 and three times per short rest at level 10.

Lightning Strike:

You are able to cast a powerful lightning strike at a target. It functions as a ranged spell attack and the to hit equals your Intelligence modifier plus your proficiency bonus. It deals 2d6 + your intelligence modifier lightning damage, has a range of 30ft, and can be used once per long rest. This ability improves as you level up:

Level 5: +1 additional use per long rest (2 total)

Level 6: damage die increases to 3d6

Level 8: range increases to 60ft

Level 10: +1 additional use per long rest (3 total)

Level 11: damage die increases to 4d6

Level 16: range increases to 120ft, damage die increases to 5d6

Level 20: damage die increases to 8d8

You gain access to the disguise self, mage hand, minor illusion, charm person, dispel magic, greater invisibility, and wall of force spells. Disguise self, mage hand, and minor illusion can be cast at will.

You gain access to the alter self, major image, charm person, detect thoughts, fear, confusion, dominate person, and mass suggestion spells. Alter self and major image can be cast at will.

You choose up to four other creatures within 60 feet of yourself that can see you. Until the start of your next turn, each of those creatures makes attack rolls with advantage and can’t be frightened. You can do this once per long rest. This increases to twice per long rest at level 5, three times per long rest at level 10, and four times per long rest at level 15. You gain unlimited uses of this ability if you reach level 20.

You can target one Dragon you can see within 120 feet of yourself. The Dragon must make a Charisma saving throw with a DC equal to your spell save DC (the DC is 8 if you do not have a spell save DC). A chromatic dragon makes this save with disadvantage. On a successful save, the target is immune to your Power of the Dragon Queen for 1 hour. On a failed save, the target is charmed by you for 1 hour. While charmed in this way, the target regards you as a trusted friend to be heeded and protected. This effect ends if you or your companions deal damage to the target.

You are immune to fire damage.

At the start of your turn, as a free action, you can gain advantage on all melee weapon attack rolls during that turn, but attack rolls against you have advantage until the start of your next turn.

As a reaction, in response to taking damage, you can attack any creature within 5 feet of yourself. If no creature is within reach, you can move up to half your speed toward an enemy you can see, without provoking opportunity attacks. If you are within 5 feet of a creature at the end of this movement, you may attack it.

You have a fanged maw that you can use to make unarmed strikes. When you hit with it, the strike deals 1d6 + your Strength modifier slashing damage, instead of the bludgeoning damage normal for an unarmed strike. Your to hit is your Strength bonus plus your proficiency bonus. You may choose to use Dexterity to hit and as a damage modifier with this attack instead.