This thing is pretty awesome. Even if it were just a 9/9 without shroud, it'd be sweet since it'd still be a 9/9 for 7. With shroud, this becomes even better. Unfortunately, the shroud does prevent you from giving this any sort of evasion (save for mass evasion such as Fangren Pathcutter). However, this will force a creature sacrifice every turn even if it has no evasion. It's a pretty cool 7-drop.
Pros: 9/9 shroud for 7
Cons: No evasion