It's just that, according to the memories of these knights, mages often have many limitations when casting the spell of the undead killer, and it is difficult to maximize the effect of this spell, and when it comes to undead creatures of the same level, the effect that this spell can achieve is often not as powerful as other creatures think.

Because the undead killer spell can be used in a very wide range, and only deals damage to the undead creatures in it, and does not affect ordinary creatures in this range, and even some low-level mages can also cast it, so there are some limitations on the damage caused by this spell.

If the undead killer cast by an ordinary mage is far lower than the normal spells of the same rank in terms of damage alone, it cannot cause any substantial damage to the undead creatures whose rank exceeds its own, and it can only weaken the strength of the undead creatures to a certain extent.

For low-ranking mages, casting the undead killer spell may not be a good choice when fighting undead creatures. The undead slayer spell can only exert its true effect in the hands of the most powerful mages.

In the face of undead creatures whose rank is far lower than their own, the undead killer cast by the mage can easily achieve the general effect of purification, cleaning up a large number of undead creatures in an instant.

At this time, what appeared on the battlefield was undoubtedly such a situation, just the appearance of an undead killer completely cleaned up all the undead creatures on the battlefield, including the necromancer who controlled them.

Even though all the undead creatures had died, in mid-air, there was still a steady stream of white light spilling down, illuminating the entire battlefield below.

It is conceivable that even if there are undead creatures that survive under the white light of the first arrival, they will not be able to escape this continuous light.

For a while, all the Erathia warriors who noticed this result were extremely shocked. These Erathian warriors are not afraid to fight necromancers, but it will take a long time to completely clean them out, and it will not be possible to do so easily as the undead killer who appeared.

Many knights who were meticulous in observation and had the corresponding experience had already sensed some information from this undead killer at this time. They knew that only a true legendary mage could do that with a single undead killer.

In the course of this battle, these Erathia warriors also met many legendary mages within Bracada, and it was under the guidance of these legendary mages that they were able to quickly come to the depths of Bracada and participate in the previous battle by relying on the existence of space spells.

Prior to this, due to the existence of the Forbidden Demon Barrier, in this battle, these warriors had not seen the legendary mage cast a powerful attack spell, and their understanding of the legendary mage's strength was more based on the deeds they had heard in the past.

It was only then, when the battle was over and the Erathia warriors realized that there were no enemies around them that they had no enemies to deal with, that they realized what the effect of this spell cast by the legendary mage could be.

If they hadn't seen this with their own eyes, these Erathian warriors might have had doubts about the records of the legendary mages and their true strength, but by now, this doubt had long since been removed from the hearts of these warriors.

These Erathian warriors have realized that if the legendary mages who exist here cast a different spell, their own fate may not be much different from that of the necromancers who exist here.

Among the warriors of Erathia, many knights with prominent status, who have learned about spells, know how to deal with various incoming spells, or have some knowledge of common sense of spells, have a more profound awareness than ordinary warriors.

In the impression of these knights with special statuses, the unique spell of the undead killer seems to have originally come from Erathia.

The creation of the Necromancer Technique was not developed by the mages of Bracada and later developed through the existence of the Magic Guild, as ordinary spells were, but by the priests of Erathia.

According to the understanding of these knights, the relationship between the necromancer and the orthodox mage of Bracada is more of a discord caused by ideas, rather than a deep grudge against the necromancer in other areas around Dya.

When the necromancers were banished by the mages of Bracada and established their own Deya, Deya's encroachment on the surrounding area did not stop.

For these expelled necromancers, the orthodox mages of Bracada did not have any idea of dealing with them, they only restricted their access to Bracada's territory, and then ignored them, and for the other forces around Diya, the arrival of necromancers undoubtedly had a great impact.

The erosion of necromancers, whether it is a direct attack on Erathia's weakly defended territory, or lurking in the territory of Erathia to teach spiritualism, has had a great impact on the people of Erathia.

It is also in this situation that the priests of Erathia have developed a spell that only works on undead creatures and can be extremely effective in determining the identity of the necromancer, which is this special undead killer.

Under the effect of this spell, the priests of Erathia were able to restrain the invading necromancers very well, making it difficult for Diya's necromancers to gain any advantage around Erathia.

When this spell appeared, it didn't take long for it to spread to the magic guilds in Bracada, and with the existence of the magic guilds, it became known to more mages.

After the improvement of the magic guild mage, the effect of the undead slayer spell is more powerful, and there are stricter requirements for the rank of the mage who casts this spell.

At this time, it was such a spell that appeared in front of the Erathia warrior. Under the effect of the white light produced by the undead killer, all the creatures around him related to the energy of death have died.

The death energy that was originally gathered by the necromancer in the field was even more empty at this time. The only thing that could be preserved under the effect of this white light was the corpse of the Beamon Behemoth that existed in the field.