Ad Nauseam would work really well in this deck. When I was play testing this, I never had enough 0 drops to find a Tendrils of Agony, and when I did find one, it meant I continually hit creatures and didn't get any mana ramp to play it. If you add Ad Nauseam, Storm count and mana wouldn't be a problem and hopefully you wouldn't kill yourself with Ad Nauseam with all those 0 drops :)

The problem I see with Ad Nauseam is getting the mana to cast it in the first place, this would require more copies of Culling the Weak and adding some Dark Rituals which wouldn't really do anything other than cast Ad Nauseam.

Dark Ritual

Mana Confluence instead of shocklands?

BoardFire land grant only allows us to search for forests

Why not play Grapeshot over Tendrils? It's much more cost effective.

I love the idea of this deck, and you may want to add some Beck to improve the consistency of the draw from the 0 drops, as it has a similar, albeit not as strong, effect.

Thanks great idea I'll have to see about fitting Beck in.

To be quite honest, in playtesting Serum Powder is simply not helpful to this deck. It's not hard to get a strong opening hand or mull into a Glimpse of Nature, so I'd consider dropping them for some Beck and possibly some Simian Spirit Guides to compliment the other mana producers.

Have you given any thought to Manamorphose , Grapeshotand/or Infernal Plunge? Given the amount of creatures you play, how about Storm Entity or Haze of Rage ?

The deck idea is great. I like decks like these, i would opt for fetchlands so you can sift through your deck easier, instead of the lotus petal.

Lotus Petal in this deck is so much better than fetchlands. You can only play one land per turn. With Lotus Petal you may have 4 extra mana in one turn.If you think about it, it's possible to make the combo on turn 2 or even turn 1 because of Petal.This deck is excellent!!! I love it!!! +1 from me

With the edits you've made, this deck is ridiculous. I've played it about ten times and it's pulled a turn one combo each time.

How do you get past Force of Will or Daze?

It could be worth running one or two copies of Pact of Negation to dodge "free" counters like Force of Will and Daze. It seems like the deck's only shortcoming is the lack of protection from disruption.

blargathan I was thinking of adding Pact of Negation to the sideboard and hoping the Glimpse of Nature wouldn't get countered game one.

I'm a huge fan of one/first-turn-kill decks and experimented a lot with the subject.So I like the idea of what you're tryin' to do here and I REALLY tried to make it work -BUT it just doesn't work out. I playtested about 25 times and 24 of that I ended up with nothing more than a bunch of useless creatures on the battlefield and no mana left to play tendrils, culling or scapegoat. Maybe Grapeshot and Infernal Plunge will do a better job, but even than it's not that easy to pull it in a one-shot.

A lot of people have suggested Grape Shot for this deck over Tendrils of Agony, so I feel obligated to put this suggestion to rest. Grapeshot is a great card for the mana cost, and is also fantastic for spot removal if absolutely needed. In this deck, however, it's nearly impossible to get the combo in one turn if you're using Grapeshot. Tendrils of Agony is a better card in every single way. Although it costs two extra mana, a storm deck more than has the means to produce that, and this one especially. Tendrils is better for the sole reason you only need to produce 10 storm as opposed to 20 storm with Grapeshot. Plus, if an opponent is gaining life, the storm count required just gets impossible for Grapeshot to produce without maybe Past in Flames to recast it! If an opponent has 48 life winning in his lifegain deck, would you rather produce 24 or 48 spells to win in one turn? Culling the Weak + Tendrils of Agony is better in a deck who needs the speed. Also, this deck is very consistent if you mulligan to the right hand, to be honest.

Alright, I get the Grapeshot issue. Damage might not be enough, that's a point. But still I think that this deck - in it's current form - is not efficient enough to pull a win in most games. I did another ten playtests and - I always mulligan for Glimpse of Nature or Beck if I don't have it in first hand - there's no first turn kill, because I either don't have the draw engine in the first place; or I draw into non-creatures that leave me with nothing to play (because no tendrils or not enough mana / the right colour). Three times I've got solid two or thrid turn wins, but only because I had two Glimpse of Nature and two lands. I'm pretty sure, that I'm doing it right, but it doesn't end well most of the times. It's still a cool concept and I like it by the way, no offense! Maybe you should replace Personal Tutor and Scapegoat with 4x Gitaxian Probe for more cycling mechanisms.

I think that losing the Personal Tutors and replacing them with either Street Wraiths or Gitaxian Probes is a wonderful idea, I agree with that for sure, but Scapegoat is quite literally the best card in this deck at the moment, and I'll tell you why. You play Glimpse of Nature from Elvish Spirit Guide, get the combo started and are drawing cards. You play seven 0 drops and then have a Lotus Petal on the field. You have nine storm but no win-con in your hand. If you play Scapegoat, you get to return six of the 0 drops to your hand, and increase your storm count to 16 after replaying the 0 drops and drawing six more cards. From there, if you still don't have your win condition you have surely drawn into more 0 drops. Scapegoat is a free Ad Nauseam in this deck, and I think playing two or even three is very much merited. Also, even though I agree the Personal Tutors may need to be replaced by cyclers, they technically can count as Tendrils of Agony 3 and 4, so it's possible losing them would lower the consistency ever further. What this deck needs most is some form of secondary win condition if you can't get the combo going strong enough to win with storm. It needs a form of backup plan, maybe like Impact Tremors or something that can be repeated with 0 drops and Scapegoat if you can't get enough draw going.

Adding in Street Wraith would increase the likelihood of a t1 win

In response to the comment about needing a second win con, how about Mycosynth Golem since you have a ton of artifacts?

Mycosynth Golem is a great card, I agree, but in this deck it's just 4/5 with no evasion. Sure you can get it out somewhat early, but its second ability is actually useless, as every artifact already costs 0! I think the golem is a great suggestion, it's just that it won't be able to be used fully in a deck with only 0 costing artifacts! I still feel that some kind of ETB effect to ping your opponent in combination with Scapegoat or something to give the 0 drops more than 0 power would fit the deck better.

I agree with the comments above Grapeshot would be very effective and cutting 2 Beck and adding 2 Tendrils of Agony would make it more consistent. Also does Glimpse of Nature Stack? Like if I had 3 played on the same turn for each creature spell I played would I draw 3 cards?

How about Obelisk of Urd naming either constructs or kobolds. You'll end up with an army of 2/3s that can swing for lethal in two turns most likely

Defenetly put Mox Opal. I tested your deck 10x, and most of time it had mana trouble.