Time to get back to this thread... I've neglected it a bit.

I think I agree with you guys that the three biggest holes here are anti-fliers, card draw and anti-artifact/enchantment.
1. Anti-Artifact/EnchantmentTich is right that
Nullmage Shepherd
is probably not the guy (er... girl) here. I love her so, but she's going to struggle to have three friends on the table, methinks. I note that I have not a single artifact in here, so
Shatterstorm
variants likely go straight in. I'm wary of waxing my own
Asceticism
s and
Curse of Stalked Prey
s if I have an enchantment sweeper. I
do have
Primeval Light
s...
2. Card DrawThis is where I'm going to struggle, really.
SotF
probably counts as card draw (simply because it's so awesome), but outside of that... I haven't got copies of
Harmonize
or
Triumph of Ferocity
lying around, alas. I
think I've got some
Collective Unconscious
es lying around...
3. Anti-FliersOh, man, you're dead right on
Silklash Spider
, Tich. I've only got a singleton, and he's currently busy tearing my Cube up.
Hidden Spider
kind of tickles me, actually... I must have thousands of those things.
Raking Canopy
and
Gravity Well
are also possibilities.
Alternatively, I suppose I can always head down the
Deadly Recluse
/
Thornweald Archer
path...
The Other StuffYou're right on
Lumberknot
, Tich. I just need to find copies. Haven't bought much of Innistrad-block (have a box of RTR on pre-order, though). This deck probably needs to win via ampheasibly large hexproof trampling critters, and
Lumberknot
is dead on. I'm also pondering the merits of
Hamletback Goliath
here. Probably not a full playset due to CC, but still, he's
big.

And yeah, it pays to be diverse with your X spells. I think I can probably dig some alternatives out of the collection somewhere.

I... actually don't think I've got any
Reach of Branches
.... that's a pity. Recursive and all...