"Trespassers within my Arsenal? I'll see to it you go... quietly." — Warmaster Seerus
Ghostmane Stalkers are a type of monster found in the Clockworks.
Ghostmane Stalkers are shadowy, ninja-like Gremlins that stalk knights. With the ability to cloak, dodge, and throw blades, they are the assassins of the Gremlins and are also the quickest. Their recon cloak behaves the same as in Lockdown: they can mark Knights with the Recon Mark and eventually the Death Mark, which nullifies a Knight's defenses completely for 5 seconds. If a Stalker is damaged while invisible their cloak will break, rendering them visible.
Ghostmane Stalkers are a pain to deal with, since they are able to cloak, are agile, and never stay in one area for very long. Since Stalkers become visible when successfully hit by an attack, any wide-area Bomb can be used to successfully and efficiently reveal any hidden Stalkers. Once revealed, try to kill them as quickly as possible; they will become vulnerable and are easily knocked back by regular attacks. If you are unable to kill them in time, they will re-cloak and flee. Mecha Knights can also see through the cloak and will seek them out.
The Grinchlin Stalker alludes to the Dr. Seuss story How the Grinch Stole Christmas.