to be a Monster in the later episodes of the series. In the climactic showdown with Gaav the demon dragon king, Xellos defends Lina and her friends from the attacks of Seigram and Gaav, while suffering a grievous wound in the process. In the third season, Slayers TRY, Valgaav tries to summon Dark Star to the world of Ruby Eye. Xellos is sent to prevent the summoning. He helps Lina and her friends fight Valgaav and stop Dark Star from being released into their world. In the fourth and fifth seasons, his goal is to ascertain whether Red Priest Rezo's soul is the only item sealed in the Hellmaster's Jar, or whether the piece of Shabranigdo killed in the first season was sealed with it. If so, he has to prevent the demon lord's shard from breaking free, due to the unforeseeable consequences such an irregular awakening might have. Unlike most dark lords, who create one general and one priest, Zelas Metallium created a priest/general combo – Xellos. As the only Mazoku under Zelas' command, Xellos is extremely powerful. Lina's group is therefore cautious of his movements, because if he were to become their enemy, their defeat would be almost certain. This is confirmed in Slayers Revolution, when Xellos faces the entire Slayers party and comes out on top; during the fight Lina states that even with all of them fighting him at full force, they would still lose. He is immune to most magic; nothing short of a direct hit from Lina's Ragna Blade or Gourry's Sword of Light can stun him, assuming that his enemies are fast enough to strike him in the first place. Like all monsters, Xellos can teleport by phasing into and out of the Astral Side, the realm of spiritual existence in the Slayers world. He uses this ability to his advantage in battle, blinking between the Physical and Astral planes like a strobe light to make his movements more confusing. Xellos is capable of annihilating nearly anything using his own power (this is best shown by his destruction of an entire clan of Golden Dragons with a casual gesture). However, he tends to underestimate his opponents; he is, for example, severely beaten by Valgaav. In the anime, Xellos and Lina seem to have mutual respect for each other. He seems to enjoy the chaos that follows Lina and follows her for the sake