he means the random cards that seem just thrown in. For instance, kazuul warlord is pointless unless the rest of your deck is allies, which it isnt. also, if you only have 2 lightning bolts, a burst lighting really has no place in your deck. The idea is that you have "one of" a ton of cards, u need to narrow it down and have more of fewer cards to make a more consistent deck.
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here is the link to my deck, it isnt perfect, but if u get any ideas from it, feel free to use them. http://www.mtgvault.com/ViewDeck.aspx?DeckID=39592
I experimented with this concept some time ago in a red/blue pyromancer ascension deck. In an ideal hand, it kicked ass, but was quite inconsistant.
i dont get it... ponder is better than telling time and sleight of hand in every way. and u have no archive traps in here, arguably the best mill card around.