Your search for "Ruthless Knave 483" revealed the following:
Ruthless Knave (J25) from Foundations Jumpstart, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Aaron Miller Card Text:2B, Sacrifice a creature: Create two Treasure tokens. (They're artifacts with "T, Sacrifice this artifact: Add one mana of any color.")Sacrifice...