Marking Matrix

You have to use the quest item to trap the enemies, and then click on them to extract the mark.

used quest item [item=187684] on [npc=238091] & [npc=238090] while they are gathered in a small proximity so the trap capture all of them (usually 4 in total). They will be trapped and become clickable. Extract and run away. Can be annoying if some are not trapped, I use CC and crowd control or wait until item cooldown is refreshed to use again (8sec).

"They are easy to find. I found them here, where they spawn every one to two minutes. Their name is Shadowguard Voidthief. Make a target macro and fly around-that makes it faster. /way #2371 43.41, 50.95