A "Deck Fattener" is the strategic opposite of a Deck Thinner. Essentially, a Deck Fattener adds cards into the Deck. Two examples of such cards are "Pot of Avarice" and "Pot of Generosity". Another fattener is "Bait Doll" if you keep targeting a face-down Spell Card you control. Although a few Decks have benefited from Deck fattening, this strategy is usually looked down upon by Duelists, as it adds more cards that they have to draw in order to get to what they need, thus slowing down their strategy. It is usually employed by Decks that need to recycle certain key cards or mill themselves dangerously, such as "Lightsworn", "B.E.S." and "Madolche".