Sacrifices are used to generate [[Classes]] and upgrade [[Abilities]]. [[Classes]] require 3 Sacrifices. Sacrifices are parts of [[Monsters]], although not every part is a Sacrifice. Sacrifices come in three qualities: Low, Medium and High. Abilities from low tier sacrifices can upgrade 3 times, 6 from medium and 9 from high. Some [[Abilities]] can analyse sacrifices for more information. The amount of sacrifices a monster contains is determined by both size and power. Quality is influenced by the power of the monster and the importance of a part (Head stronger than an arm) A sacrifice's effects are influenced by the monster's traits and what the part is used for. To use a sacrifice, you have to absorb the [[Mana|Essence]] contained within whilst thinking about what you want to use it for, whether it's generating your class or an ability upgrade. It is often dangerous to directly absorb a sacrifice, as the influx of power can be harmful, so there are items and rituals designed to help with this process. Absorbing a sacrifice with an aid will help tame the power, influencing abilities to be easier to use, whereas absorbing a sacrifice directly causes stronger effects, but they may carry downsides or have higher costs. An extreme example of this is eating sacrifices raw, however, this is ill advised as most sacrifices are deadly to consume.