Cursed Technique: Mechanical Endurance

Using a mixture of your construct endurance and cursed energy you bestow others with machinelike properties, as a bonus action expend a cursed energy point and pick a creature within 30 feet (must be willing), for 3 turns their creature type changes to construct and they gain immunity to poison, resistance to cold, and vulnerability to lightning, if they are dropped to 0 hp during this trance they do not become unconscious until the mechanical endurance effect is over, if they do drop to 0 hit points during mechanical endurance at the end of mechanical endurance they take a level of exhaustion 

If you go down you may use the rest of your cursed energy points (minimum of one), to enable the mechanical endurance feature