Tubamaphone

Oooooo! I like the changes! I was just thinking that I should have mentioned Visions of Beyond! I think I may have to make deck like this!

I love it! If only you could squeeze that 4th Mind Funeral in (one of my personal favorite cards for mill) but you have plenty of power without it. How have the Guard Gomazoas been working out? I was just thinking about how sick 4 Snapcaster Mage would, allowing you to replay the stuff out of your graveyard, doubling your playing options. Fun deck!

Whenever you're running Predator Ooze, Ulvenwald Trackers fit in nicely with them! Just a suggestion, as there is not a lot of control or removal you can do otherwise in mono green.

For sideboard, I agree that Corrosive Gale, Naturalize, Acidic Slime, etc are going to be good fits to help you deal with situations. Also, Ratchet Bomb is great against Delver or Token Decks. Good luck! Fun deck!

Dungeon Geists are nice in the side board if you aren't running them main deck. They are going to help you out late game control the big creatures your opponents are dropping

Another suggestion! Gitaxian Probe is very nice in Delver/Blue decks too.

Only one Mana Leak? In a Delver Deck? Go 4 Mana Leak, 4 Snapcaster Mage (if you have them or can get them),. I love the Vapor Snags and the Ponders in here. They are going to really help setting up your aggressive deck! I would go 4 Vapor Snag.

I guess you really need to decide more what you want this deck to be focused around. There's a lot of good strategies in here, but you can't shoot for them all. I would tailor the deck more around Delver, or more around infect, or more around Ludevic. Just a suggestion! Good luck, the deck looks fun and like it has a lot of promise!

So true! I have a similar deck and even having haunting echoes as a one of in the main deck has been incredibly powerful!

I was thinking the same thing, but I am playing a deck very similar and Avatar kind of slowed me down.

This would slow the deck down, but Curse of Stalked Prey + Spikeshot Elder would be pretty awesome!

I just realized that you don't have any removable in the main deck or side board. That might be something to consider. It could be Dismember, Tragic Slip, Oblivion Ring, etc.

Any suggestions on what to cut?

This is pretty sweet, having both Midnight Haunting and Lingering Souls (where you're able to pay the flashback)! Since you be producing tokens and killing things, have you thought about Tragic Slip? I was trying if Tragic Slip or if Dismember would be a better fit.

I just noticed Runechanter's Pike. I guess Snapcaster would be counter-productive

Snapcaster Mage is a pretty sweet flash/control creature that should be in here!

Interesting take on the spirit deck. My only concern is that the deck is a little expensive/slow. Phantasmal Image would be a nice cheap creature that you can use to double your drogskol captain, thus making both with hexproof, or you can use it to copy an opponents creature until you get enough mana out to start dropping spirits. Doomed Traveler would help your curve too. Have any of the dual lands or evolving wilds to throw in?

As far as your side board, I think Gitaxian Probe would be a better fit for your deck than Tezzert's Gambit. You already have 26 3+ mana costing cards in the main deck. Gitaxian Probe would at least give you something to do early game. I think Mentor of Meek would be pretty sweet in your main deck, just the way you have your deck set up with all the low power tokens. Personally, I'd have more drawing in the main deck like Gitaxian Probe or Ponder.

I'm running a more Delver-based spirit deck. Can you offer some suggestions?
http://www.mtgvault.com/ViewDeck.aspx?DeckID=325257

Cabal Coffers? :-) I made a Relentless Rats deck too once. Its nice having some drawing in it though

Also, if you ever did cut out a color, Dread Statuary would be pretty sweet in here!

Do you prefer rampant growth over Cultivate, Kodama's Reach, Explosive Vegetation, etc. Those cost a little more, but give you two lands

I love this! But I wouldn't play Precursor Golem. I understand that Apostle's Blessing will help, but targeting one is a wrath for you. How has it played?

Fun! Expensive cards in here too - I'm jealous