Your search for "Curious Inquiry 51" revealed the following:
Curious Inquiry (Foil) (MKM) from Murders at Karlov Manor, available at 401 Games Canada. Rarity: Uncommon Finish: Foil Artist: Ekaterina Burmak Card Text:Enchant creatureEnchanted creature gets +1/+1 and has "Whenever this creature deals combat damage to a player, investigate." (Create...
Curious Inquiry (MKM) from Murders at Karlov Manor, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Ekaterina Burmak Card Text:Enchant creatureEnchanted creature gets +1/+1 and has "Whenever this creature deals combat damage to a player, investigate." (Create a...