black has the best answers in innocent blood and fume spitter at one mana. the infect deck doesnt play the long game. the deck is focused on a turn 2 or 3 kill. the two black decks are B/G tortured existence and mono black(sometimes splashing blue).
I've had good success with WW and first and second turn first strike dudes. You better have either a good blocker or some good removal turn 1 or 2 or you are toast.
White Weenie is the only one that comes to mind, as between Standard Bearer, Serrated Arrows, and Guardian of the Guildpact, infect can have a tough time. Other decks/card that hose infect are appreciated.
My Trade Thread http://forums.mtgsalvation.com/showthread.php?t=295895
My block deck.
http://puremtgo.com/articles/infinite-lessons-vampires-around-block-part-1
my card alters
http://community.wizards.com/elfsword52/gallery/view_gallery.one?gal_id=1