- "A survivalist with a weakness to sunburns and a fondness for gothic cathedrals, Anna "Artery" Buckler is an elite German specialist."
- — In-game biography
Anna Buckler, also known as Artery is a character featured in Call of Duty: Mobile and was added in the game on May 22, 2020, during Season 6 Once Upon A Time In Rust as part of The Huntress Draw.  Later, during Season 7: Elite of Elite, Artery appears in the Comics, being part of a mysterious organization called "The Dark Covenant".
Artery is a member of The Dark Covenant, alongside Dark Shepherd, Witch Doctor, Dark Rider and Stansfield. She later assists Templar and Dame in taking out his mercs as an act of betrayal. She also makes a remark about Rorke's arrogance. She also later bears witness as Dame executes Rorke.
Later on, in Blackout , Artery is present when Dame is talking to Templar about recent developments. Templar apparently wants to leave the Dark Covenant and take his daughter Sophia with him, but Dame tells him that she is an asset to the Covenant and that she will never be let go. As a result, Templar kills Dame by slicing her throat open before he goads the rest of the Covenant members into fighting him.
Artery joins the fight after Templar kills Dark Rider and fends off Dark Shepherd and Witch Doctor. She expresses her anger at him for betraying them when they are at the cusp of having everything. Templar responds that he’s making a choice, to which she provocatively tells him that she will make sure Sophia doesn’t even remember his name, though Templar insists he will get her back anyway. Dark Shepherd questions him how he’s going to do so since he has no allies, no intel or resources, but Templar doesn’t seem to care.
After a grueling battle, Artery is defeated along with Dark Shepherd, as she is shown being dragged away by Witch Doctor.
- Her description is reminiscent of classical take on the European vampire.