Liquid Magic

Liquid magic is the source of a vohlefs elemental properties. It is pumped through their bodies by an organ similar to a heart called the corcillumedeis.

Properties
Similar to blood, liquid magic flows through a vohlefs body. However it only needs to provide to certain parts of the body, such as the quills and the brain.

Where the liquid magic is pumped to also varies from each element of vohlef, concentrated in areas that help with their specific magics. That can manifest in either boosting certain organ performance, or allowing for easier manipulation through paws.

Fire Vohlef
Fire vohlefs and any secondary magics branching of from them, are unique in that they use liquid magic externally. When mixed with their saliva it makes an extremely flammable fluid which they can then ignite.

Harvesting
A few other species have made agreements with vohlefs to harvest liquid magic to use in medicines.

The process is fairly simple, a small incision at the base of a quill is all that's required. Once healed it's as if nothing happened at all.

Another, far less socially acceptable, method is to harvest directly from the mouth of a fire vohlef. This method is similar to milking a snake and does result in much larger quantities of liquid magic. It is however frowned upon, and generally any who practice this method can't sell their products on the open market.