9 cards where the name includes “nightstalker”

Abyssal Nightstalker (Portal Second Age #61)
Brutal Nightstalker (Portal Second Age #64)
Lurking Nightstalker (Portal Second Age #77)
Nightstalker Engine (Portal Second Age #81)
Predatory Nightstalker (Vintage Masters #134)
Prowling Nightstalker (Masters Edition IV #93)
Raiding Nightstalker (Portal Second Age #84)
Return of the Nightstalkers (Portal Second Age #88)
Shimian Night Stalker (Chronicles #36)

The message was clear to Sorin—time to search for something else.