Dark Sustenance (3.5e Sacrifice)
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The Gate is the source of the body's animation. Positive energy goes in, negative energy comes out, the body ages and decays with time. By learning to control the flow of energy, one can find sustenance in little more than mental effort. You do not need to eat, drink, or breath while under the effects of Dark Sustenance, as you draw energy from life around you instead. This effect lasts for up to 24 hours.
Maximum Health Penalty: -3.