Eureka Relic Weapons were introduced in the Stormblood Expansion. You have to get through a dull process of collecting tons of unique crystals for each level of the Eureka Weapon. Our professional teams are ready to help you save time. Just contact us and choose the proper weapon!
Note: You should have previous relics to unlock the next one. For example, if you want the Pyros Weapon then you need to have the Elemental Weapon.