'Extreme' content, famously associated with Brelshaza and Valtan, has returned to Lost Ark. This new Extreme Raid series features Brelshaza, Aegir, and Kazeros Acts 1 and 2.

Each raid will run sequentially for four weeks, with Brelshaza appearing after Aegir concludes. Like previous Extreme modes, rewards are limited to one clear per roster per week and are independent of your designated gold-earning characters.

The raids are designed as single-gate encounters, meaning the boss fight begins immediately upon entry. The focus is entirely on high-difficulty, single-boss combat. Normal and Hard difficulties provide one revival opportunity per character.

There are three difficulty levels: Normal (1,720), Hard (1,750), and Nightmare (1,770). Rewards include 20,000 gold for Normal and 45,000 gold for Hard. Nightmare offers the same rewards as Hard, plus an exclusive Legendary title with a unique icon upon the first clear. Nightmare is a high-difficulty mode with no revivals, where the primary goal is to earn the title through a single clear.

Rewards consist of gold and exclusive tokens, which can be used to purchase growth-related items. Key rewards include Relic Combat Engraving Recipes, Hell Key Chests, and Metallurgy Selection Chests.

This update brings various improvements alongside the Extreme Raid. The most significant change is the increase in Bound Gold. 50% of gold earned from content below item level 1,710 will now be converted to Bound Gold. This applies to content ranging from Echidna down to the lower tiers of Kazeros Raids and Serka Normal.

The Cathedral of the Horizon has been nerfed for stages 2 and 3 to ensure a smoother experience. Across all stages (1-3), hit-stun and knock-up patterns have been relaxed, making the overall difficulty noticeably easier.

Card acquisition has also been eased. The 'Legion Commander of Kazeros' set (also known as LOS) now allows players to purchase one Legion Commander card from Wandering Merchants, and cards for the 'Master of Spear' set are now more accessible. Additionally, a superior set called 'Light of Conviction' has been added to replace the existing 'Master of Spear' set. It consists of four legendary cards and a mix of hero/rare cards, making it relatively easy for existing collectors to utilize.

Convenience improvements have also been implemented. Light-Dark and Dark Bomb debuffs have been unified into a single refreshable effect, and Express Mail has been merged with standard mail. Furthermore, an automatic Core registration feature has been added to reduce the burden of repetitive management.