Efficient:: 自分 uses all muscle groups to attack
Effective:: 自分's offence are also defensive moves
Cold-Blooded:: He relies on instinct supported by logic
Intuition:: Sharp. Can replace all of his 5 senses
Reflexes:: Allows 自分 to dodge unexpected attacks
His swordsmanship's a synthesis of brutality & technique, concentrating force at maximum efficiency while minimizing wasteful energy
To illustrate his efficiency, for ordinary organisms, approximately 65% to 85% of the energy is wasted, with only 15% to 35% converted into mechanical work, but he can comvert 100% of it, & his hits are perfectly elastic, defying physics as he transfers ALL energy