Is this a Casual Sneak Deck?...
A lot of people overlook the cloudscraper...
the goods are okay - but you can do better...
you don't need the mages...
And the Phoenix's cousin - Weatherseed is missing...
For small utility - Shard Phoenix is also great in a sneak deck - as you get it back...
If you're going to run the green - survival is another great find...
the flings are okay - but you can do more by tossing in phyrexian colossi... Then they stare at the 8/8 even though their colossus is standing in front of yours...
if you tell me whether this is DCI rules, or truly casual - I can do more for you...