Martial Mastery

Martial Mastery is a passive AS boost that incentivizes training in multiple weapon types and is an alternative to going for 425. This bonus requires training 2x in a primary weapon skill, and is lost entirely at known 25 spell ranks. These restrictions effectively limit the bonus to squares.

Secondary and Tertiary weapon ranks are the weapons you have the most training in after you primary weapon skill.

AS Bonus = MIN(50, FLOOR(Secondary Weapon Ranks / Tertiary Weapon Ranks) / 8))

This AS Bonus is reduced by 5% for every spell known over 5.

Spell Penalty = MAX(FLOOR((0, (AS Bonus - ((AS Bonus * (25 * 5)) / 100)))