Name:slashing storm
Relevant stat:dexterity
Syntax:finesse slashing storm
conditions:two swords, tactical knowledge
cost:1500 [fatigue]
penalty:AC, parry
bonus:hitroll, ultimate damroll, two extra attacks
block synergy:Slicing Swords, Maiming Swords
block conflict:Dual Block, Crossed Swords, Mesmerizing Swords

You start whirling both your blades wildly around you in wide slashing moves, hitting all enemies. The moves are not chaotic, though, but precisely planned and executed (you are not a stupid fighter, but a skilled swordsman, after all), and your blows land exactly where you want them to, with great power.