Fourth

Fourth Forusu (フォルス), known alternately as Circle of Consonance, is one of the five discovered Magics in Valkyrie World universe(s).

History
Circle of Consonance Kyōwa no En (協和の円) or Harmonious Sphere in another translation is the second magic discovered in history, but the order was switched by Tribeca Weinschnorg with reason that this magic's rating is much higher than of the second. This magic was discovered by Deltaxius Erebea when he was searching for a source of the purest entity of nature. This magic used afterward along with Deltaxius' original Sacred Fantasia Seisō (聖想), "Durandal: Sword of Cognitive Force" to won the Ageless War.

Effects
The concept for this magic is "Synchronize, Diverge, Analyze and Divest", which defined as "sync the enemy and take the chance while analysing them". There is not much known about "Consonance" itself, Deltaxius himself cannot interpret the meaning of the magic construction, it still becomes a case of a mystery until now.

Conception
There are three separate conceptions within this magic, which are:
 * Acceleration Magic Kasokuhō (加速法): is a magic which uses Synchronization concept of this magic to apply, it takes will of the caster and synchronize it within the desired stats (such as movements, strength, etc.) with accelerating mana by extracting raw unprocessed mana to the surrounding area and absorb it to the desired area of caster's will and channel it as an invisible output. So basically, it controls the magus' stats with will by releasing mana and absorb it as an output. For A+ magus, the extracting process would be unnecessary, they can extract it in their own body as the result of high physical immunity.
 * Perception Magic Chikakuhō (知覚法): different from those of Divination and Formulation Magic, this magic allows the caster's perception to improve its reliability by providing mana to the caster's eyes and makes it more distinct than before, some magi of old era call this magic as "God Eye" Kami no Me (神の眼), for its vision's sharpness. This magic usually used by front-attacker magus in the battlefield to approximate the enemies' movement by calculating their movements with Divination Magic and combine its usage with Perception Magic, in order to evade every enemies' attack, magus provided with this magic are usually almost impossible to catch or land a single blow.
 * Transmission Magic Sōshinhō (送信法): differing from Transmittal Magic (although the name is slightly the same), while Transmittal Magic allows the caster to move objects or person (on a rare occasion) freely by their will, this magic allows the caster to transfer objects or person and even things related to magic (such as Power Transfer, Strength Transfer, etc. While Circuit Transfer is a different case) to desired place or person, even the farthest point from the caster's location is possible. But further, the location desired more stress is put upon the caster's mind, the side-effect can sometimes be dangerous.