User blog comment:Gilgamesh79/Demonic Energy and Magical Energy/@comment-29963364-20170824174604

This is how I make sense of the whole "Demonic Power vs Magic Energy" thing.

There are three things a Devil needs when using Magic:

* Imagination - Visualize their desired phenomenon in their mind.

* Creation - able to control their Demonic Power to produce the phenomenon.

* Good Sense - similar to Hand-Eye Coordination, except in this case, it's Demonic Power - Mind Coordination.

As long as a Devil has all three of these, they can pretty much do anything they can imagine (with some limitations).

There are some Devils who have a unique "affinity" for a certain phenomenon or concept, which can be passed down as a genetic trait.

Bael - Destruction (ability to destroy anything and everything, depending on power & skill level)

Agares - Time (Time Manipulation)

Belial - Worthlessness (make the powers & abilities of people or objects "worthless")

Phenex - Phoenix (Fire Magic, Super Regeneration, Healing Tears)

Bune - Dragon (Taming Dragons, Dragonification)

Abbadon - Hole

These "affinities" give the Devils of these blood-lines access to powers & abilities that other Devils don't.

There are some cases where a Devil only has 1 or 2 of the 3 things listed above. This limits their abilities significantly, depending on which one(s) their missing.

Lirenkus - A Devil boy Issei met in vol.10. He has Demonic Power, but he couldn't use it. Then during the events of vol.17, he recieved a Magic Book (which I think Rossweisse gave him) and he could then use Fire Magic. I think this means that Lirenkus has 2 of the 3 things I listed:

<p style="font-weight:normal;">* Imagination

<p style="font-weight:normal;">* Creation

<p style="font-weight:normal;">However, he doesn't have the "Good Sense" or "Demonic Power - Mind Coordination" that is needed to create & control phenomena just by imagining it. In order to make up for this, he needs to learn and use Magic the same way as Human Magicians do. Rather than using his Demonic Power as a "fuel source" to "create phenomena," he needs to manually control his Demonic Power to "construct Phenomena."

<p style="font-weight:normal;">In other words, instead of "using his imagination," he needs to "use his head."

<p style="font-weight:normal;">Examples

<p style="font-weight:normal;"> Devil A 

<p style="font-weight:normal;">* Stretch out your hand.

<p style="font-weight:normal;">* Imagine a ball of fire shooting from your hand.

<p style="font-weight:normal;">* Channel your Demonic Power.

<p style="font-weight:normal;">* A stream of flames burst out from your hand.

<p style="font-weight:normal;"> Lirenkus 

<p style="font-weight:normal;">* Stretch out your hand.

<p style="font-weight:normal;">* Channel your Demonic Power into your hand.

<p style="font-weight:normal;">* Change/alter your Demonic Power's properties to produce a flame (temperature, combustion rate of the air, direction of the force used to shoot the flame).

<p style="font-weight:normal;">* A stream of flames burst out of your hand.