Darkmorph

2nd-level mythic transmutation

You become surrounded by a thin sheet of magical darkness. While surrounded by this darkness, you have a flying speed equal to your walking speed and you can hover. Your AC also increases by an amount equal to your Constitution modifier, and you can see normally in darkness, both magical and mundane, out to a range of 120 feet.

In addition, two large, fanged tentacles of pure magical darkness spring from your back. Using a bonus action on your turn, you can make one attack with each tentacle. A tentacle has an attack bonus equal to your spell attack modifier, deals 2d10 piercing damage plus 2d10 cold damage on a hit, and has a reach of 15 feet. You regain lost hit points equal to the cold damage done by a tentacle.

The spell ends if you or one of your tentacles is touched by bright light.