Using this skill on corpses while having a sharp knife out and ready for work,
have a chance for alchemists to extract the very life essence of the creature.
This so called quintessence can then be further refined by master alchemists
for more practical form of usage. Having the skill also increases chance of
essence dropping from monsters upon their demise.
Proficient alchemist can try to extract essences belonging to certain category
by focusing on a distinct tint of that category. This however has increased
chance of failing since focusing and searching leaves very little room for
error.
Syntax: use 'extract ether' corpse focus on <color>
        use 'extract ether' corpse