Mael & Estarossa

and are a pair of two powerful blades wielded by one of the Four Knights of the Apocalypse, Tristan Liones.

Appearance
"Mael" is a sword with a Goddess inspired design and "Estarossa" is a sword with a Demon inspired design

Abilities
Both swords were enchanted by Thetis.
 * "Mael" has an enchantment that make Tristan less susceptible to the enemy's mental attacks.
 * "Estarossa" has the power to break through the target's magic defenses.

Trivia

 * The swords are named after Mael of the Four Archangels and Estarossa of the Ten Commandments.