Strange Dungeon - Gullfaxi

See Coimbra Bridge Missions for a list of other available missions. This mission was first introduced in v10.4.1.

Mission Information
Location: Coimbra Nimrod Bridge (I5)
Entry Cost: Key [Strange Dungeon - Gullfaxi] (1 per family)
Frequency: 1/day
Duration: 20 minutes
Participants (v10.4.1): 1-10 families (MCC3)
Participants (v10.18): 1-12 families (MCC3)
Reward Type: Roulette

The key can be acquired from Wandering Merchant in Bahama Base Camp (E3) with Expedition Memo x30, which commonly drops in all 4 Bahama swamp maps (but not Underground Cave).

The mission is simple, head to the center of the room and Kill the Mini Boss Capybara Knight. A message will say "Grupax Leader is weakened 1/3". If u are in squad better split to left and right branch to kill the mini boss there. The right branch mini boss is Celegriworm, simply kill it so a message will say "Grupax Leader is weakened 2/3". The left branch mini  boss is Celemantis, its a little annoying since it is knocked back very often, simply kill it so a message will say "Grupax Leader is weakened 2/3".

Head to the end of the room where Gulfaxi is waiting. Kill him and the treasure chest will appear near it.