You get +2 to your con score and +2 in any other skill/skills

You take 2 hours to completely charge during these 2 hours you are completely inactive and cannot see hear or even be pulled out of the charge unless by magical means 

You have immunity to poison and the poisoned condition as well as immune to disease you don't need food or water and don't need to breathe also any pain can be ignored entirely to continue fighting you are also vulnerable to acid damage 

You integrate armor shields and weapons (if wielded by 1 hand) into your body and therefore cannot be doffed or disarmed of them unless with dc=15+proficiency bonus+constitution modifier or if you choose to do so if it's a weapon you can sheath your weapon by retracting it into your body and get your hand able to use but while not sheathed you cannot use the hand you are wielding it with as well as you retract shields into your arm you may only do this with armor and weapons you are proficient with 

You know common and one other language 

You can see perfectly in the dark at the cost of your eyes glowing which grants disadvantage on stealth although you have no limit on how far you can see in no light even while perceiving colors however you only get disadvantage on stealth when in dim light or no light conditions