Demon Form, style 1

You can harness the dark powers that flow through you and take a demonic form. Whenever you cast the Mage armour spell you gain the following benefits:

• You form a single inky black wing, giving you a flying speed equal to your walking speed.
• Whenever you receive magical damage roll [roll]1d12[/roll]+charisma modifier+proficiency bonus and reduce the damage by that amount. If the number rolled exceeds the damage that would have been taken, turn the difference into temp hp.
• Your weapon attacks deal 4 extra damage.