What the frig is Vappad?
Vaapad, the seventh form of lightsaber combat, takes its name from a notoriously dangerous predator native to the moons Sarapin: a vaapad attacks its prey with whipping strikes of its blindingly fast tentacles. Most have at least seven. It is not uncommon for them to have as many as twelve; the largest ever killed had twenty-three. With a vaapad, one never knew how many tentacles it had until it was dead: they move too fast to count. Almost too fast to see.
Vaapad is as aggressive and powerful as its namesake, but its power comes at great risk: immersion in Vaapad opens the gates that restrain one's inner darkness. To use Vaapad, a Jedi must allow himself to enjoy the fight; he must give himself over to the thrill of battle. The rush of winning. Vaapad is a path that leads through the penumbra of the dark side.
Mace Windu created this style, and he was its only living master.
Vaapad is a channel for darkness, and that darkness flowed both ways. He accepted the furious speed of the Sith Lord, drew the shadow's rage and power into his inmost center—
And let it fountain out again.
Vaapad made him an open channel, half of a superconducting loop completed by the shadow; they became a standing wave of battle that expanded into every cubic centimeter of the Chancellor's office. There was no scrap of carpet nor shred of chair that might not at any second disintegrate in flares of red or purple; lampstands became brief shields, sliced into segments that whirled through the air; couches became terrain to be climbed for advantage or overleapt in retreat. But there was still only the cycle of power, the endless loop, no wound taken on either side, not even the possibility of fatigue.
Because Vaapad is more than a fighting style. It in a state of mind: a channel for darkness. Power passed into him and out again without touching him.
And the circuit completed itself: the lightning reflected back to its source.
Had the novel handy.