Duskbringer

Appears as a raid for five minutes after a player lights the Lightbringer's Basin and receives the following message
"Player Name" keeps the basin burning for another three hours, but creatures of darkness are coming to take over the light!

A duskbringer attacks in melee range. A duskbringer never retreats.

Use caution when going down the stairs; large spawns can create nasty combos and make the situation very dangerous very quickly. Energy Walls or Energy Bombs can help keep you safe while you clear the area. Mages should keep Mana Shield active, and Paladins can descend with an Energy Ring equipped to stay safe when jumping down the stairs to assess the room. If needed, enter through the alternate stairs, then fight your way through the Hellhounds and Plaguesmiths, and lure carefully until you reach the basin.