A warrior exclusive combat maneuver, Mighty Blow is an attack that briefly reduces the stance of the defender, possibly reducing their ability to defend the attack. It also increases the amount of damage done on a successful hit. Testing indicates the increase is 10% of weapon damage factor per rank (+50% damage factor increase at rank 5).
Use of the combat maneuver costs 5 more stamina if the weapon used is a two-handed weapon or if two weapons are used, for a total cost of 30 stamina. A Mighty Blow is one second slower than a traditional attack.
A battle-scarred Grimswarm orc veteran swings a flail at you! AS: +225 vs DS: +250 with AvD: +43 + d100 roll: +38 = +56 A clean miss. > A battle-scarred Grimswarm orc veteran gets a wild-eyed look on her face! A battle-scarred Grimswarm orc veteran swings a flail at you! AS: +225 vs DS: +198 with AvD: +43 + d100 roll: +46 = +116 ... and hits for 8 points of damage! A feeble blow to your left arm!
Expected result against an unarmored target
unarmored AvD = (41 AvD + 3 for perfect weapon bonus) = 44 AvD Greatsword base damage factor = 0.625 if multiplicative with perfect weapon: DF = 0.625 * 1.06 (perfect bonus) * 1.5 (mighty blow bonus) = ~0.994 or if additive with perfect: DF = 0.625 * (1 + (0.06 + 0.5)) = 0.975
>cman mblow You swing a perfect ora greatsword at a giant rat! AS: +423 vs DS: -36 with AvD: +44 + d100 roll: +63 = +566 ... and hit for 528 points of damage! Massive blow punches a hole through the giant rat's chest! The giant rat twitches and dies. Roundtime: 6 sec.
5 ranks of Mighty Blow raw damage = 528 total damage - 65 Crush critical table damage) = 463 endroll margin = 566 - 100 = 466 damage factor = 463 / 466 = ~0.994