The final upgrade brought his shadow's capabilities to 80% of his own power, a level that approached true combat partnership rather than simple assistance. Furthermore, the shadow had gained a new effect, an equipment bonus, which meant that the shadow is now able to use the powerful weapons that Arthur can bestow on it.
With enhanced attributes, equipment bonuses, and access to transferred skills or talents, his living shadow would effectively function as a second Arthur operating at slightly reduced capacity.
Arthur examined his remaining resources: 14 skill points remained available for future investments. The next tier would likely require even more points, but the foundation had been established. His living shadow was now ready to serve as both tactical asset and strategic reserve.