22 cards where the set is “mkm” and the text includes “collect”

Analyze the Pollen (Murders at Karlov Manor #150)
Axebane Ferox (Murders at Karlov Manor #153)
Behind the Mask (Murders at Karlov Manor #39)
Bite Down on Crime (Murders at Karlov Manor #154)
Conspiracy Unraveler (Murders at Karlov Manor #47)
Crimestopper Sprite (Murders at Karlov Manor #49)
Cryptex (Murders at Karlov Manor #251)
Deadly Cover-Up (Murders at Karlov Manor #83)
Evidence Examiner (Murders at Karlov Manor #201)
Extract a Confession (Murders at Karlov Manor #84)
Forensic Researcher (Murders at Karlov Manor #58)
Hedge Whisperer (Murders at Karlov Manor #165)
Incinerator of the Guilty (Murders at Karlov Manor #132)
Izoni, Center of the Web (Murders at Karlov Manor #209)
Kylox's Voltstrider (Murders at Karlov Manor #215)
Lamplight Phoenix (Murders at Karlov Manor #137)
Polygraph Orb (Murders at Karlov Manor #99)
Sample Collector (Murders at Karlov Manor #175)
Surveillance Monitor (Murders at Karlov Manor #73)
Tenth District Hero (Murders at Karlov Manor #34)
Urgent Necropsy (Murders at Karlov Manor #240)
Vitu-Ghazi Inspector (Murders at Karlov Manor #183)

Though this query has ended, its relics still slumber in New Argive.