Your search for "Vent Sentinel 156" revealed the following:
Vent Sentinel (CNS) from Conspiracy, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Chris Rahn Card Text:Defender1R, T: Vent Sentinel deals damage to target player equal to the number of creatures with defender you control.
Vent Sentinel (Foil) (CNS) from Conspiracy, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Chris Rahn Card Text:Defender1R, T: Vent Sentinel deals damage to target player equal to the number of creatures with defender you control.
Officer (015) // Illusion Token (Foil) (TTRK) from Star Trek, available at 401 Games Canada. Rarity: Token Finish: Foil Artist: Carlos Dattoli & Flavio Greco Paglia