Everything

Advanced mastery of chi allows a martial artist to sap the vital energy from his opponent. This feat demands Prime 3, and pulls out Quintessence instead of inflicting damage. A true Master can use Prime 5 to utterly annihilate an opponent. This sort of thing is bad juju, but such feats are authentic parts of martial-arts lore.

Because energy is essentially invisible, the Prime 3 vari-ant remains coincidental; the victim feels weak, but remains physically unharmed. The Prime 5 version, however, is pretty damn vulgar, as it causes the victim to explode, disintegrate,

or suffer some other horrific fate.

For details about draining Quintessence from living organisms, see the Lambs to the Slaughter entry under Optional

Rule: Harvesting Quintessence Through Sacrifice in the Energy-Work section, pp. 49-50.