Couch312

Zhur-Taa Ancient + Savageborn Hydra = Giggles. You also have a fair amount of double green creatures, Nykthos, which can tap for devotion would be amazing fo you. Especially with Primordial Hydra. Why yes, I would a over 9000 hydra that doubles.

Here is my amazballs standard deck. I can usually swing with a fifty to a hundred something with trample turn five.
http://www.mtgvault.com/couch312/decks/11-counter-rush/

This deck makes me feel slightly unoriginal. Although you only have a way to make two creatures hexproof. So a white blue control/lockdown or a red black burn/remove deck will usually beat this deck.
The reason this makes me feel unoriginal is because I built a somewhat similar deck, never having saw it before I thought it was new. All well.:D
If you feel like looking.
http://www.mtgvault.com/couch312/decks/11-counter-rush/

Splash black for corpsejack. You know you want to.

Ancient tomb would be my only suggestion.

Since it's all about untapping Pseudamma, Triton Tactics? Hidden Strings?

-3 Loyal Pegasus
-1 Feral Invocation
-4 Commune with the Gods

+4 Phalanx Leader
+2 Ordeal of Heliod
+2 Ordeal of Nylea
That would be my opinion.

Non-standard I'd take out 1 Temple of Plenty, 1 Plains and 2 Forests and add 4 Sunpetal Groves.

Master Biomancer or Vorel of the Hull Clade would be good for this deck.

You could add pyretic ritual. Then, turn three, with three lands, pay two to cast pyretic ritual, pay one more and geosurge into balefire dragon.

Have you thought about Azusa, Lost but Seeking? There is also burnished hart or ranger's path.

Azusa, Lost but Seeking lets you play two additional lands on each of your turns.

You have blue in there, didn't even see that. Have you given thought to Prophet of Kruphix then? You could easily ramp into it by turn 3. Untap all your creatures and lands on opponent's untap steps and cast creatures as though they had flash.
An unanswered Prophet will end games.

Ranger's Path and Burnished Hart are both good ramping cards.

What do you think of Karametra Acolyte. Tap for mana equal to your devotion to green. That or Gyre Sage. Tap for mana equal to the amount of 1/1 counters on it. Gyre Sage does evolve.

Would you mind taking a look at my hydra deck and giving some suggestions?
http://www.mtgvault.com/couch312/decks/hydras/

Hero of Iroas. You want this card.

Phalanx Leader. Ordeal of Heliod. Ordeal of Nylea. Those are my suggestions. If you're not worried about standard, I'd say Sunpetal Grove.

No doubling season? Or Trostani? Doubling Season would do what parralel lives does and make scute mob insane. Trostani is a three mana populate and life gain.

You're welcome.:D Glad to be of service.

It's always hard to say no to that really cool creature you want in your deck.

Jarad Sacrifice? Some kind of hydra, corpsejack menace, mana ramp into beefy hydra, sac it with jarad dealing billions of damage to all opponents. Win.

Did they prevent damage? It's a good thing it was a vastwood hydra, allowing you to distribute the 1/1 counters among your remaining creatures, doubling them again because corpsejack is amazing. Sac another creature made beefy from vastwood. Win again.

Hrm, I've never tried playing red white before, but in my opinion;
-2 Kamahl
-3 Momentary Blink
The reason for this is you already have the sun titan for three creatures that cost six, then you're whole goal is to flicker him to constantly bring back things like Ball Lighting in conjunction with Electropotence. This sounds hypocritical when I'm suggesting to remove Momentary Blink, but you don't have any blue mana for the flashback, making it a more expensive Cloudshift.

+4 Burnished Hart
+1 Cloudshift
One cool thing about Burnished Hart is that it doesn't tap to sac it, meaning you can chump block something and then sac it as a response to it dying.

Sideboard Opaline Unicorn.
As I said, I've never tried Red/White, so this is just my opinion based upon my style of play.