The Abyssal Trident is a meleeweapon exclusive to the Queen and the Sea DLC. It can launch a series of pushing attacks that score critical hits, and can also be interrupted for another critical hit.
"Increases your movement speed for 5 seconds after a critical hit."
Location
The trident is found inside a lore room located in the Infested Shipwreck. To find the lore room the player must find 4 map parts that are dropped from random enemies. When all four are collected it combines into a mysterious map. It marks a spot on the map with an X symbol that leads to a breakable floor. Breaking it reveals the Forked Key which unlocks the lore room. Inside the room is a pedestal containing the Trident. When picked up it unlocks it permanently.
"What a beautiful pedestal!"
"That trident must have belonged to someone important."
Using Open Wounds and the Blood Drinker aspect, this weapon can become a useful healing tool, as every individual damage tick from the charge is considered 1 attack for the purposes of Blood Drinker's healing.
The Forked Key can be found without the Mysterious map.