Merclibay's Mightiest

Merclibay's Mightiest is a in Xenoblade Chronicles 2. It is a DLC quest introduced in version 1.4.1 as part of the DLC Quest List - Distribution 3 DLC. It can be received from Caephon at Rigitte Harbor in Rigitte Waters in the Leftherian Archipelago, after starting, provided Electra, Zenobia and Herald are in the party. Once the quest is completed, Merc Missions that build more Trust, starting with Arach-no-More, will be available in the Merc Group.

Quest objectives

 * Defeat Pelagic Vincent on Merclibay Islet in Leftheria.
 * Defeat the monsters on Merclibay Islet in Leftheria.
 * It is possible to take on all three monsters at the same time.
 * The Merc Missions, Electra's Strategy and Zenobia's Strategy, can be completed to remove the second Pelagic Vincent and Telluric Desirée from the fight, leaving Celestial Bailey alone.
 * Report back to Caephon at Rigitte Harbor in Leftheria.

Results
"There turned out to be three vile beasts in all, but they proved no match for Alrest's mightiest Driver and s! (DLC Quest)"