From here:
http://www.mtgsalvation.com/forums/magic-fundamentals/the-rumor-mill/562486-gathering-magic-preview-soul-of-new-phyrexiaSoul of New Phyrexia
6, Artifact Creature - Avatar, 6/6
5: Permanents you control gain Indestructible until end of turn.
5, Exile this from your yard: Permanents you control gain Indestructible until end of turn.
If we're starting threads for garbage like Punching Gloves of Avarice or whatever, then we should definitely at least take a peek at this fellow. He seems like a contender for the Wurmcoil/Karn/Trike/Hellkite slot in shops. Here's how I think about him:
1. His casting cost is fine. Shops plays 6 drops all the time. Like Wurmcoil, his body wins just about every fight against a creature that didn't come out with Oath or Tinker.
2. His activation cost is not terrible. The fact that you cannot activate him off a Workshop is a problem, but if you're running a Metalworker build, I would think you'd have 5 in midgame more often than not.
3. And, here's the kicker. Like Wurmcoil, this is a threat even after the player deals with it. You can resolve it early to put on pressure. If they kill it, fine, whatever, you have a 5 mana counterspell on tap for Chewer/Claim whatever later on. If they don't kill it and you get to 5 mana, it becomes nearly impossible for them to stop you unless they have Recall.
So, where does he fit? Wurmcoil is probably better in a void. But, Worker decks that would board him in against decks with heavy artifact destruction, such as white, red, or green aggro lists. Also seems very fine against Noble Fish, where you expect to see lots of Pridemages and Predators.
All around, very solid.