One of Adaliinds tasks today was defeating the Champion Orrian Terror in the waters of Mournful Death. The champion was deep in the waters under the flooded castavall. He was held captured there until an earthquake released him. He is from the race of Risen and threatens all those who enter the waters nearby.
From Guild Wars 2 Wiki
Adaliind attacking the Champion with her armor fish close by
Deep near the bottom of the ocean floor, Adaliind encounter a Triop fish. It appears to have a
strong shell and looks like a crab with a tail. The creature was friendly, so she felt best to leave it alone.
Her fighting fish is the Armor Fish. He’s the one looking straight at the screen.
Just his looks intimidates foes.