Mael & Estarossa

and are a pair of two powerful blades wielded by one of the Four Knights of the Apocalypse, Tristan Liones. The swords are named after Mael of the Four Archangels and Estarossa of the Ten Commandments.

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.