Originally Posted by
Izor
Nothing replaces Thoughtcast. That card is a 4-of and each list with fewer than 4 is not optimal. drawing two cards for 1 mana is a lot better than confidant, especially as this deck doesn't appreciate non-artifact permanents.
And as for Moxes, I basically agree. That's why I will probably use 3, not 4. But still 4 is possible. It's really hard to decide for a card, which ypou want to see in your opening hand but which you don't want to have more than once per game.
@ Royal Ass: As far as Etched Champion is concerned I would use it only in the sideboard. There are only a couple of decks he's really strong against, namely aggro decks like Bant, Merfolk, Zoo and Goblins. Against other decks he's just too slow with 3 mana 2/2 and his Pro can't make up for that. Also it competes with Master for the CMC 3 slot and I don't think that Affinity can run more than 4-5 CMC 3 cards main (and I'd really not cut Masters fpr Champion).
And Confidant seems good on paper but in parctise it is rather disappointing in Affinity. It is a great draw engine for faster Control decks like CounterTop and for slower Aggro decks like Rock. But for Affinity it is really too slow. Affinity can (and has to) win incredibly fast, which is its biggest selling point. Confidant is a card that would try to imprve the deck's midgame. This is pretty useless because we will be pretty much dead if it comes to the midgame anyway. No Bob will prevent that. Thoughtcast is the only draw spell that is efficient, explosive and reliable enough to fit this deck.