Shadowflash Serpent

Shadowflash Serpent is a Boss Battle event featuring solo and co-op battles against the Thunder elemental dragon, Ilco Opus.

Event Period

 * Run 1: Oct. 5, 2021 05:00 - Oct. 20, 2021 04:59
 * Run 2: Jul. 29, 2022 – Aug. 8, 2022

Eligibility
You will need to clear Chapter 1, Stage 8-4 of the Main Quests to participate in this event.

Event Details

 * Run 2 of the event added quests for Ilco Opus Godly difficulty.
 * Defeat Shadowflash Serpent Ilco Opus during the event period to obtain ‘Lilac Ilco Opus Denarius’, ‘Gold Ilco Opus Denarius’ and ‘Silver Ilco Opus Denarius’ that can be exchanged for useful items in [Event] > [Item Exchange] or [Shop] > [Event Item Exchange].
 * [Daily Exchange] Jupiter Element is available until Aug 8 04:59 (UTC).
 * Defeating the Shadowflash Serpent Ilco Opus as a backup does not count towards ‘Clear a Inter. boss battle as backup’ in the [Regular] mission tab.
 * You cannot use Boss Boosts when battling bosses for this event.
 * [Event Item Exchange] Shop will stay open for 1 week after the event ends.
 * ‘Lilac Ilco Opus Denarius’, ‘Gold Ilco Opus Denarius’, and ‘Silver Ilco Opus Denarius’ will automatically be converted to Mana 1 week after the event ends
 * Event details may be subject to change without prior notice.