“Yes. It was a complete failure. The Rausten knights arrived far more quickly than I'd anticipated. But it doesn’t matter, does it? Whether I won or lost? You were planning on abandoning me from the start, weren't you?”
—Aias to Caellach if he survives the chapter
Aias is a Great Knight and aide to General Caellach in the army of Grado who appears in Fire Emblem: The Sacred Stones. He was formerly a part of Caellach and Joshua's old mercenary group from Jehanna and claims to both be a great tactician and that he was never even scratched in battle. Even though he says he has no need for rank or title, Caellach convinced him to join up with Grado as his lieutenant. He is charged by Caellach with killing Eirika, but if the player passes the turn limit, he will flee to Jehanna Hall where Caellach will kill him after claiming he is one of the things keeping him from his future life as king. He drops a Knight Crest when defeated.
*Dropped upon defeat
Like a good tactician, Aias is well prepared and has an assortment of powerful weapons at his disposal. He essentially has control of most of the Weapon Triangle - his choice of Axe being a Swordslayer, meaning he has Lance 'weaknesses' - and can easily destroy your Sword users with his Swordslayer and has very high stats compared to earlier bosses. He can still be beaten easily by a strong Axe-wielder, either with a Hammer or a Halberd, due to his Great Knight class and the fact that he is initially equipped with a Short Spear. Magic users with 14 attack speed or higher can be useful against him as well, but only to a lesser extent.
Aggressive players may find that Aias can be killed very early on in the chapter, a rarity for defense chapter bosses. However, doing so will prevent the player from recruiting Cormag, who appears on the map as a reinforcement on turn 5.
Aias: It's not over yet. Victory still hangs in the balance. The key is defeating the enemy commander, but...
- Vs. Eirika
Aias: Ah...So here you are. The princess Eirika.
Aias: You're not at all what I had expected... I would test the arm that bested Glen.
“Very...impressive. You've pierced the battle formations I'd perfected. No one's ever done that...Renais's tactician has earned my highest regard.”
—Death Quote, if killed before turn 11 ends
“Rausten Knights?! That means Caellach's-- Curses...All troops! Retreat at once!”
—Retreat Quote, if alive at the end of Turn 11
The name Aias is probably a reference to the Ancient Greek hero Ajax, whose name could also be spelt Aias.