Absorb and undermine are subpar. Taking 3 life from your opponent is absolutely useless, and gaining 3 life yourself is only a little better. Forbid , mana leak, and even dissipate are all more solid choices that don't require a certain color of mana to work. I don't like extract. At best, it's soso when you manage to nab an oath decks morphling or weaver or someone's blessing or an ak. At worst, it's absolutely useless, wasting a card in hand and a mana during your main phase to very, very slightly hurt your opponent's future draws. If you must play something like that, use furnace. It can stop recursion, hoses reanimator, and cycles to boot. Blessing probably is marginal. It's dead early on and only slightly improves your draw quality in the mid/late game. No disenchant effects main or side is a big mistake. Maybe if you played 4 deeds, you could rely on them for maindeck removal, but you want a few more in the side at least. Duress is not a sb card. Run it main (i'd suggest that), or take it out to make room for cards that can really turn particular matchups. Last, i think i'd like FoF over the infiltrator as my card-advantage engine. With no other creatures but your late-game closers, those infiltrators make good those otherwise dead creature-control cards. FoF would make blessing more justifiable, too, to score those handy free reshuffles.