Episode 12 of Slayers Revolution, “Legacy: Decisive battle at Seyroon!”, begins with a military garrison at the border of Seyroon being attacked by Zanafar. Coincidentally, Sylphiel just happened to be there, too, and she blocked the first blast from Zanafar from decimating the garrison. But none of the counter-attacks by Seyroon’s wizards work against Zanafar. Before the magical beast annihilates the garrison, however, Lina and company arrive. And for some reason Deucriss persuades Zanafar to retreat for now.
After chasing Zanafar over a great distance, Lina and Gourry are famished, so instead of chasing down Zanafar again, their next course of action is to inhale large amounts of food. We also learn that Sylphiel was helping out the Seyroon army as a medic, which explains why she happened to be with the garrison. Meanwhile, the Seyroon government officials are bickering among themselves about what to do against Zanafar and who should be responsible for the current crisis, all the while with Prince Phil and Princess Amelia watching over them silently.
Pocota barges in the meeting. After revealing his identity as the prince of Taforashia, he asks for Seyroon’s help in defeating Zanafar. The government officials are reluctant, especially since there doesn’t seem to be any apparent way to defeat the beast, which finally causes an outburst from Prince Phil that Zanafar is a great threat that Seyroon should do its best to help contain. This shuts up all argument and secures the cooperation of all Seyroon, and Lina and company also declare their intention to help out.
Zanafar starts attacking Seyroon soon after, so Lina, Gourry, Amelia, Zelgadis, Sylphiel, and Pocota head out to fight against Zanafar, while the Seyroon army is charged with evacuating everyone. I wonder why Deucriss had Zanafar attack now instead of back at the garrison where Lina was exhausted and wouldn’t have fought very well? Is he deliberately trying to keep open the chance for Zanafar to be defeated? Or is there some other sinister scheme he’s working on in his quest for revenge?
Lina and friends don’t do so well against Zanafar at first, with none of their conventional magical or physical attacks working, and with Lina reluctant to use any of her higher-level spells yet. She and Pocota are specimens that Zanafar is eager to aborb, however, since they have shown abilities and knowledge that it hasn’t absorbed yet from other humans. Though Sylphiel and the rest of the gang might have a point that Zanafar would keel over with a stomachache if it ate Lina or Pocota.
The situation improves when Pocota gives up trying to attack Zanafar with the replica Sword of Light himself and hands it over to Gourry. With his incredible swordsmanship, Gourry is able to fend off and attack Zanafar much better than Pocota could. Zelgadis and Amelia also try to attack Zanafar in a synchronized attack, but their attacks are ineffective against the magic-immune Zanafar.
As the battle wages on, Sylphiel wonders why Lina isn’t joining the attack using her high-level magic powered by the Lord of Nightmares. The reason is that the strain from the Ragna Blade means that there would only be one chance to use it, so if she fails to finish off Zanafar with the Ragna Blade there would be no second chance. She’s also being wary of Deucriss, who has been staying out of the battle so far.
The battle continues on to the next episode. We might get to see what diabolical scheme Deucriss has in mind, the reason he had Zanafar retreat at the beginning of the episode. He still has his own Zanafar armor; will he use it to create another Zanafar? And will Gourry be able to damage Zanafar enough with the replica Sword of Light, or will Lina have to use the Ragna Blade when the replica putters out at a critical moment? The preview indicates that we’ll be seeing Ozelle again, which makes me wonder what role she will play. For that matter, I wonder how Weiser and Zuma will influence events, although it’s marginally possible that Zuma might not be showing up again after his defeat in the previous episode.