Your search for "Convenient Target 305" revealed the following:
Convenient Target - Magnified Showcase (MKM) from Murders at Karlov Manor, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Sergio Cosmai Card Text:Enchant creatureWhen Convenient Target enters the battlefield, suspect enchanted creature.Enchanted creature gets +1/+1.2R: Return Convenient Target...
Convenient Target - Magnified Showcase (Foil) (MKM) from Murders at Karlov Manor, available at 401 Games Canada. Rarity: Uncommon Finish: Foil Artist: Sergio Cosmai Card Text:Enchant creatureWhen Convenient Target enters the battlefield, suspect enchanted creature.Enchanted creature gets +1/+1.2R: Return Convenient...