Your search for "Covert Operative 33" revealed the following:
Covert Operative (Foil) (LGN) from Legions, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Kev Walker Card Text:Covert Operative is unblockable.
Covert Operative (LGN) from Legions, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Kev Walker Card Text:Covert Operative is unblockable.
Covert Operative - GD01-122 - Common from GD-01 Booster Pack: Newtype Rising, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: KISUKE Card Text:[Main] Choose 1 enemy Unit with 2 or less HP. Return it to its owner's hand....