I would replace the wings with an ice shield or thorn carapace. I would also take out the precognition and add another mummy. 
Now you're talking about more expensive cards, which is something you really want to avoid. The main point is to summon as much damage as possible for as few supernovas as possible. Apart from this a little control is fine but you want it cheap and minimal so it doesn't clog up your hand, which is very bad considering you want to tear apart the opponent ASAP.
Personally, I like the wings. It's a very nice stop to mono life rushes and destroyer rushes, giving you the time you need to win. It can also save you in many other situations . It's also cheap and doesn't clash much with the other cards.
