The exoskeletons could only function for a couple of hours due to their power-hungry nature. A power-efficient exoskeleton could last for days with minimal and optimized movements but for long-term use, they were basically useless.
The main purpose was to help the wearer lift heavy weights and run a little faster. It was incredibly useful in places like oil rigs and coal mines where the worker's life was always in danger. With the suits, they could work safely and more efficiently. In the case of any mishaps, the exoskeleton could provide them with additional protection.
This blood rune could be integrated with such an exoskeleton, at least he thought so. He had no idea how this could be achieved as he was not even remotely acquainted with the blood ritual techniques.
'If I could build something like this, wouldn't that be amazing? No, an open exoskeleton wouldn't cut it. With the flexibility of blood-qi that many openings will be deadly. Maybe an armor. '
Creation is hard, cheer me up!