Techniques and Counter-techniques
Basic Techniques, Advanced Techniques (allowing success with Basic Techniques against Basic counter-techniques)
Advanced Counter-techniques
Deception: Advanced counter-technique

Variety: Multiple implementations of techniques. Character classes. Weapon selection. Statistic management.
good-unto-itself: a self statistic. self-altering
good-unto-others: to the others!

let there be no bad technique, but plenty of bad-technique-application available.

Fight!