I shall begin my writings by explaining two things. I will not go into full detail since this is not a research journal.
(1) E'er Absorption.
(2) E'er Affinity.
E'er absorption takes place when a person assimilates E'er into themselves. This can happen through two (2) means: Ambient E'er, and E'er from other beings.
Absorbing Ambient E'er is the slower of the two. E'er has to be compressed and then enter the body. This does not happen when killing a living being since E'er is released in its compressed state.
E'er affinity is how efficient the absorption is, and, by extension, the efficiency of its expenditure. Items that increase efficiency do not increase affinity, unfortunately.
Let's take two (2) individuals as examples.
Individual A; Natasha Novak, a Halve.
Individual B; Alyssa Pruvik, a Luzo.
The two individuals have one hundred (100) cubic meters of E'er for them to absorb.