10 cards where the illustration contains “long-arms”

Appendage Amalgam (Duskmourn: House of Horror #83)
Drogskol Reaver (Dark Ascension #137)
Kheru Bloodsucker (Khans of Tarkir #75)
Murky Sewer (Duskmourn: House of Horror #263)
Overlord of the Balemurk (Duskmourn: House of Horror #113)
Phyresis (Mirrodin Besieged #49)
Silent Hallcreeper (Duskmourn: House of Horror #72)
Soulherder (Modern Horizons #214)
Soulsworn Spirit (Return to Ravnica #51)
Spectral Snatcher (Duskmourn: House of Horror #116)

This search is finished. Now the real work can begin.