MTG Salvation

The deck's goals include the ability to combo hard and fast (duh), protect itself via some very powerful deterrants such as Vexing Shusher and Pact of Negation (one of your favorites), recover quickly and efficiently from boardwipes or state changes via varied and powerful ramp (although this is sort of an inherent trait of green anyway), and finally the deck needs to be able to pump out some serious swinging force for when boardstates begin to lock up. Dragonmaster Outcast, Avenger, and Baloths all handle this really well (People tend to let these resolve since they need to save their counters for the instant-win cards).

The only other changes I am considering at the moment are possibly swapping out Arcane Denial for Voidslime, and maybe looking into whether I can shove Squee, Goblin Nabob into this. I'd put Imperial Recruiter into this slot instead, but it's just so far out of budget. One other card possibly up for consideration in this slot is Kira, Great Glass-Spinner. Vendilion Clique would also be great for this 3-drop slot, but it's too pricey.

If you have any other suggestions or ideas I'd really like to hear them.

Some of the things I've already tried:
Terastodon - I actually switch between this, Craterhoof, Sylvan Primordial and Woodfall Primus fairly frequently, but I'm leaning more towards Craterhoof since Terastodon/Primus/Sylvan have often been bribery targets. I think I've had them used against me more than I've actually been able to use them since they get countered so often. Vorinclex funnily enough isn't a problem though. It's rare I can't immediately kill him (when bribery'd) with a clone effect thanks to the legend rule. Plus Vorinclex rocks games when you drop him turn four via Sneak Attack and Ghostly Flicker. Everyone gets too scared to kill him once it sticks because it means leaving themselves vulnerable for two turns.

Fauna Shaman - I already have Survival in the deck which does cover this area. I actually played this for quite a while before pulling it. The issue was that I would drop it and almost always fail to untap with it due to someone finding a way to remove it. Sometimes it was a true black or white removal spell, but a lot of the time it was someone playing a Flametongue Kavu or Sower of Temptation that got it. It even got lightning bolted once! At least with Survival I can use it immediately so I usually get at least one activation out of it, plus it's an enchantment which is so much harder to kill.

Holistic Wisdom was in here for a while as well, but I eventually cut it when it was performing the least of all of my recursion. It's a great card, but it's just a little bit too costly. I usually found that when I wanted to use it most was when I lacked the necessary expendable card fuel.

Anger was in here for quite a while as well. But some 50 straight games after I put him in, I still had failed to really do much with him. Either he showed up in my hand and I didn't have a sac outlet, or he got into my yard and someone immediately dropped Tormod's Crypt on him (This is also why I don't play Genesis). Urabrask on the other hand started performing from the first game I put him in. In a dedicated combo deck having him in hand to drop after sticking a copied Palinchron makes for easy wins. Plus his secondary tap ability actually works really well as protection for when someone drops a Blightsteel and has greaves out (this is actually more common than it should be with Animar around).

I've also tried running more time warp effects as suggested earlier on in this thread. What I've found though is that after shoving three or so into the deck it starts to lose out in other areas and stops being as well-rounded. (As a sidenote I would run Temporal Manipulation, but due to budget concerns I don't own one. I did get to borrow one to try it out for a while though!)

Also, since I know you'll ask, Gilded Lotus and Mana Reflection aren't just there for ramp. They're each major combo pieces. They've won me a fair number of games by getting either one out onto the field and allowing me to go infinite.

And about running 33 lands, since I know your policy is to always run 38, what I've found is that even at 33 I really have no problems with mana. I never miss land drops unless it's late game and the deck is already thinned out, and the deck has no problem with colors or immediately ramping. I had to play a LOT of games to figure out I could do this comfortably.

And while I'm still on the topic of land, I would run Dual Lands and the other two fetchlands if I could, but due to the budget I initially set for this deck it's not really feasible. The one fetchland I have I pulled a while ago from a pack.

Since you've read this far you must be wondering how this is any fun. Combo can generally be pretty toxic right? Well actually this is where it gets really interesting. What we've found over time is that if we ever play games with our fast combo decks against regular EDH decks it does suck, HARD. But when we throw multiple evenly matched combo decks into a multiplayer game it becomes INSANELY fun. Everyone has enough power at their disposal that no one is able to hold back the cards they need to protect their own combos; instead everyone has to blow their spells on stopping everyone else from comboing. Games will easily last hours. And since anyone can combo out on any turn it always keeps you on your toes.

I've never been able to play a more mentally engaging game of magic. Tap even one land wrong and you could actually cost yourself the game. I once lost because I tapped High Market instead of a blue mana I was saving for a counterspell and had Zealous Conscripts taken from me, thereby allowing them to assemble a combo (They counterspelled my counterspell with a Force of Will).