Devouring Dark Form

Sustained 1 min Your apparition’s dark power blends with your physical body, allowing you to take on terrifying characteristics of creatures that lurk in dark places. Your arms and legs transform into twisting tentacles. You gain a tentacle unarmed attack with 10-foot reach that deals 1d8 bludgeoning damage and has the grapple trait. The first time you Sustain this spell each round, you can attempt a single Grapple check with your tentacle against a creature within its reach.