Path of the Eldrazi

You have been tainted in some way by the Eldrazi, but your inner rage and strength allowed you to ward off their effects enough to keep your sanity and gain control of your transformations. You can keep it hidden and under check but when you are in danger you can quickly command your powers and drop your unsuspecting guise.

Eldrazi Form

You grow large powerful tentacles while raging. Your body shifts and mutates as you allow the Eldrazi blood to have grater effect on you. Starting at 3rd level while raging, you grow a number of tentacles, which you can make unarmed strikes with, equal to your rage damage bonus modifier. Whenever you take the attack action on your turn you can make one additional attack with one of your tentacles. It has a range of 10 feet and deals 1d4 + your strength modifier bludgeoning damage, the tentacles do not benefit from your bonus rage damage. When you hit a target with one of your tentacles, you can use your bonus action to attempt to grapple a creature with it.  if you grapple a creature this way it is restrained until the grapple ends and you can no longer use that tentacle to make attacks.

One will

Beginning at 6th level, you can’t be charmed or frightened while raging. If you are charmed or frightened when you enter your rage, the effect is ended. Additionally your tentacle damage die becomes a d6 and while raging you gain a climb and swim speed equal to your walking speed.

Resistant Form

You gain a thick hide and your form is more adaptable while raging you gain bonus damage resistances. Starting at 10th level when entering Rage you gain resistance to your choice of the following forms of damage, the number of resistances you get is equal to your rage damage bonus. acid, cold, fire, lightning, poison, thunder. Additionally, your tentacle damage die becomes a d8 and you can make two additional tentacle attacks when you take the attack action.

Final Form

You have mastered the Eldrazi and command it. At 14th level while raging you make a tentacle attack for each tentacle you have and as a bonus action you can attempt to grapple 2 creatures with free tentacles. You gain resistance to each type of damage presented in the resistant form feature.