Loven the deck. Don't run Extinguish All Hope It is far too slow. An only run 1-2 Doomwake Giant He's good but you only need 1 on the field to be effective seeing as hes a 4/6 an when you swing with him your opponents creatures should already be -1/-1 or -2/-2 depending how many Mana Bloom you end up dropping a turn. You need to run 4x Banishing Light and more removal. I suggest Abrupt Decay Ultimate Price Hero's Downfall as some suggestions. An or maybe sideboard some creature protection. Like Ajani's Presence or Bestow creatures like Eidolon of Countless Battles / Boon Satyr For more resiliency to boardwipe. Otherwise pretty cool. I like how we both had the same idea for a deck.

I was really on the fence on Extinguish All Hope , I probably wont end up running it. I'm hopefully going to get the Banishing Light s tomorrow if I can go to FNM. I do like the protection/removal ideas, though, seeing as how Eidolon of Blossoms die to pretty much everything. I was kind of on the fence about Eidolon of Countless Battles too, seeing as how I tend to sit back more and kill you other ways than just big dudes, but I'm definitely going to look into it, probably tomorrow. I feel kind of the same with the Boon Satyr . I'm probably going to keep the removal in the sideboard to keep the deck focused, but they are definitely handy, especially with certain problem creatures. I have seen quite a bit of Junk Midrange, a lot of it having bits of control, but very few straight up constellation decks. I feel it works well. Thanks for the suggestions!

Athreos, God of Passage can really be good in this deck. Not only does he trigger constellation himself, but when your enchantment creatures die, the opponent has a tough choice to make. (Yay for all enchantment creatures!).

Perhaps not in main board, but definitely at least sideboard I think.

My friend runs a similar deck, but without the green and Athreos, God of Passage is star.

Underworld Coinsmith is probably one of the best cards from Journey. It's phenomenal, especially in multiplayer.

And speaking of the underworld, Underworld Connections may be something worth considering, though with Eidolon of Blossoms here you're probably already drawing enough cards anyway.

I definitely agree with the above comments about Banishing Light . It is way to good to say no to.