Originally posted by Burning thought
That wiki even points it out as a gameplay mechanic though, everything in Defiance concerning the reavers meters and such are never canonically stated in the games canon. The reaver drinks blood being a vampiric blade and when it gains raziel, the soul reaver eats souls. But as I said, there seems to be no "charge up" canonically. Again, the only canon power that "may" be connected ot the reaver drinking blood is a higher regen of the wielder although even that is arguable.
Except it is stated in the manual that the Blood Reaver feeds on victim's life energy (via blood) to power up temporarily. Is the manual not canon?