Wild Magic

Wild Magic (始原の魔法, Wairudo Majikku) is the ancient or primal magic that has existed in Xostya long before the introduction of Tier Magic. It may even perhaps be known as the magic of the soul or the magic of the dragons. This type of magic tends to go by many different names. They're considered to be one of the powers alongside Martial Arts, Talents, and Runecraft.

Background
Six hundred years ago, prior to Tier Magic, Wild Magic was looked upon as the dominant magical art in Xostya. The masters of Wild Magic, in particular, were the True Dragon Lords. The most powerful Dragons, the True Dragon Lords, made the secret treasures of dragonkind, possibly through using Wild Magic. No one but the True Dragon Lords knew the primordial magic, the secrets of Xostya.

However, Wild Magic fell into disuse when the players were introduced to the more effective and efficient power known as Tier Magic. The decline of Wild Magic became even more apparent after the Eight Greed Kings defeated the True Dragon Lords. In the end, Wild Magic was lost and Xostya was defiled with the Tier Magic the Eight Greed Kings had spread.

And because of the genocidal slaughter of most of the Dragon Lords by the Eight Greed Kings five hundred years prior, there are now only a few known users of Wild Magic left. The remaining Wild Magic users are the surviving Dragon Lords who did not participate in the war against the Eight Greed Kings and their descendants. At some point in time, it seems apparent that the extremely rare users of Wild Magic are still being sought out.

Five centuries ago, Xostya’s original laws of the Wild Magic system were greatly warped by players and Tier Magic. As a result, dragons who were being born or spawn in this world are now acquiring Tier Magic after the era of the Eight Greed Kings came to an end. Wild Magic, the proof of power which served as a way to distinguish a True Dragon Lord from a false one who is unable to use it.

Additionally, dragons using this exotic form of ancient magic are awarded the title of Lord; hence the reason behind why they are called a Dragon Lord.

Mechanics
Wild Magic differs from Tier Magic, as instead of mana, it requires the caster to release souls in order for one to perform the casting of a powerful spell. In other words, Wild Magic was different from modern magic because it was powered by souls, rather than needing mana to cast. Although the cost of spellcasting via Wild Magic is grisly, the results speak for themselves. The more beings or souls offered up as living sacrifices, the stronger the magic when released. However, using Wild Magic can also end up destroying the link to the user's own soul, as well as making the casting of stronger magic a risky gamble in and of itself.

On the other hand, if the casting of Wild Magic is used on specific players who are in possession of a World Item respectively, it will not in any way affect the holders whatsoever. Not only that but for players without ownership over a World Item of their own, practitioners of Wild Magic should be able to affect them unless they have world protection. Likewise, wielding the power of Wild Magic meant its practitioners are also safely immune from the effects of World Items or other users of Wild Magic.

With the exception of True Dragon Lords, to gain access to Wild Magic, one must either possess the blood of a Dragon Lord or be born with an innate Talent that can let potential individuals use it. Still, even if a person does possess such heritage, the weaker the descendants are, the greater the amount of sacrifices of lives required to perform Wild Magic with estimates upwards of millions of souls. With the power of Wild Magic, one could create an explosion that could closely rival the Platinum Dragon Lord’s ultimate attack.

Fortunately, the pure-blooded, True Dragon Lords can cast Wild Magic with ease compared to those who were hybrids with partial dragon blood. Nevertheless, due to the intrusion of players and their magic influencing Xostya, it has somehow caused the True Dragon Lord's ability to use Wild Magic difficult. According to Platinum Dragon Lord's words, now, with the powers of Wild Magic tainted and twisted, it would be very difficult to create items ever again.

As they were specially made from Wild Magic, it cannot be a measure under the same regulations as Xostya items. Therefore, Wild Magic items weren't assigned Xostya numerical values which are used to categorize the strength or ranking between those magic items. While so, it was believed that the Dragon Lords' ancient magic could possibly resurrect the dead back to life without incurring the loss of life force compared to Tier Magic that does.

Trivia

 * Although the most powerful Wild Magic cannot do any harm to the World Item holder, the less powerful spells can still somehow affect their outside surroundings.
 * Apart from Tier Magic, the existence of resurrection magic was a miracle that could only be performed by legendary Lizardmen who bore the bloodline of the Dragon Lords.
 * Apparently, it seems that most if not all users of Wild Magic were mainly Dragon Lords or their descendants.
 * It seems that the sacrifices used as a catalyst for Wild Magic are similar to the magic ritual, Death Spiral, or a Super-Tier spell like the Iä Shub-Niggurath spell.