Also, I would replace Titanic Growth with Hold the Line. That and righteousness give you instants to gobble up attacking creatures, and beef up your own to compliment all the Flinging that will be going on.
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Also, to compliment him you could add x4 Righteousness.
Personally, I would run Naya colors with this deck, rather than Jund. The only black you are running is Blood Artist. Now if you were to splash white, you could run Brion Stoutarm: a reusable fling!
I would replace the Verdant Catacombs with Jund Panorama. The catacomb is more efficient, but the Panorama has a wider land grab and isn't a 40$ card :P Further, I'd replace all Lightning Blast with Lightning Bolt. Yes, the Blast has the one extra damage, but for 3 extra mana? Not worth it. As for the Maelstrom Pulse... Fantastic card, but uber expensive. Check out Putrefy (also gives artifact removal) An interesting creature to check out: Deathbringer Thoctar.
Why not run Fog Bank instead of Glacial Wall?