Your search for "diminishing returns" revealed the following:
Diminishing Returns (ALL) from Alliances, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Allen Williams Card Text:Each player shuffles his or her hand and graveyard into his or her library. Remove the top ten cards of your library...
Diminishing Returns (Foil) (EMA) from Eternal Masters, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Greg Opalinski Card Text:Each player shuffles his or her hand and graveyard into his or her library. You exile the top ten cards...
Diminishing Returns (EMA) from Eternal Masters, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Greg Opalinski Card Text:Each player shuffles his or her hand and graveyard into his or her library. You exile the top ten cards of...
Diminishing Returns (6ED) from Classic Sixth Edition, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Allen Williams Card Text:Each player shuffles his or her hand and graveyard into his or her library. You remove the top ten cards...