Consider removing the stun special from massive blows and increasing the
damage. Perhaps the number of blows landed could be not random, and instead
dependent on stats, blade power, and or the applicible guild skills. The
damage would increase porportionally with the number of blows landed.
Currently there is no difference between 4 massive blows, and 9 massive blows
(the maximum and minimum available). This range could even be expanded to
double-digits for those with very powerful blades, high strength and
dexterity, and good skills. Lastly, the healing ability of this skill, while
needing to be random to preserve balance, could also be more biased towards
skill message, stats, blade power, and/or skill percentages. Healing 40 hit
points from a weak skill and 3 from massive blows, just doesn't make much
sense.

Just a thought,

Jacen