Finish the Stormblood main scenario questline.
Bring Potions of Harmony for a 10% XP bonus and stock up on Gil to buy Eurekan Potions (regen) inside. Instance Basics & Workflow Eureka
Buy Kirin’s Osode (physical) or Vermilion Cloak (magical) from the Market Board or exchange items at Kugane Pier #1. Finish the Stormblood main scenario questline
Complete "They Call It Eureka" from Galiena in Rhalgar's Reach (X:9.8, Y:12.5). Eureka
Preparing to enter Eureka in Final Fantasy XIV (Stormblood) requires significant preparation due to its unique mechanics, where level, gear, and stats are synced differently than the rest of the game.
Unlock Logos Actions in later zones for powerful buffs (Reflect farm is popular for fast leveling).