Eureka Weapons are the level 70 Relic Weapons for Stormblood. To start the Eureka Weapon quest chain, players must have cleared their job's Level 70 job quest, since the Eureka Weapons are upgraded from the weapon rewarded by the job quest. As their name implies, all the upgrading activity for these Stormblood relics is done inside The Forbidden Land, Eureka.
Antiquated weapons (ilvl 290) are acquired by completing the Stormblood job quest line for your given job, up through the level 70 quest. They serve as the starting tier relic weapons for Stormblood, and are upgraded in the Eureka zones. If you misplaced or discarded your Antiquated weapon, you can purchase a replacement for 1,000 Gils from the Calamity Salvager in any of the three starting cities.
Protean Crystals: Complete the FATE in Eureka Anemos to earn Anemos Crystals, then turn them in to Gerolt to exchange for 3 to 5 Protean Crystals for each Anemos Crystal turned in. (See information on the Anemos fate)
Pazuzu's Feather: 3 feathers will drop each time you complete the FATE Eureka: Wail in the Willows with gold medal credit in Eureka Anemos, which requires you to kill the notorious monster Pazuzu. Feathers can also be purchased from the Expedition Birdwatcher for 300 Protean Crystals each. (See information on the Anemos fate)
Frosted Protean Crystal: Collect vitiated aether by killing Notorious Monsters and level-appropriate trash mobs in Eureka Pagos, then turn it in at the Crystal Forge in Eureka Pagos (6.0, 21.5). You will receive one Frosted Protean Crystal for each full charge of vitiated aether.
Pagos Crystal: These are acquired by completing FATE in Eureka Pagos. (See information on the Pagos fate)
Louhi's Ice: 2 chunks will drop each time you complete the FATE Eureka: Louhi on Ice with gold medal credit in Eureka Pagos, which requires you to kill the notorious monster Louhi. Louhi's ice can also be purchased from the Expedition Birdwatcher for 50 Pagos Crystals each. (See information on the Pagos fate)
Pyros Crystal: These are acquired by completing FATE in Eureka Pyros. (See information on the Pyros fate)
Penthesilea's Flame: 3 chunks will drop each time you complete the FATE Eureka: Lost Epic with gold medal credit in Eureka Pyros, which requires you to kill the notorious monster Penthesilea. Penthesilea's Flame can also be purchased from the Expedition Birdwatcher for 50 Pyros Crystals each. (See information on the Pyros fate)
Hydatos Crystal: These are acquired by completing FATE in Eureka Hydatos. (See information on the Hydatos fate)
Crystalline Scale: 3 scales will drop each time you complete the FATE Eureka: Crystalline Provenance with gold medal credit in Eureka Hydatos, which requires you to kill the notorious monster Provenance Watcher. (See information on the Hydatos fate)
Eureka Fragment: An upgrade to Eureka weapons. Stats and appearances are identical to Eureka weapons, except that they have extra elemental stats that increase the weapons' power in Eureka zones (Including The Baldesion Arsenal) only. Obtainable only from chests in the Baldesion Arsenal.