setharoth

Get rid of Twincast. Its not very helpful. Replace it with something like Ponder or Tome Scour.

Wow, very nice use of Aura Swap there. This is a powerful combo I wouldn't want to be on the receiving end of.

Still, if your opponent can't remove Piper, Faura Shamen + Elvish Piper is deadly. Pay Two mana and you can play any card in your deck. Btw, you're two cards short.

Turn 1: Play Forest and Wild Nacatl
Turn 2: Play Mountain, Lightning Bolt, and Groundswell
Turn 3: Play Plains, Lightning Bolt, and Groundswell. Game Over

Nice.

It wouldn't be worth it. You're talking about adding another card that will only work in a good combo with only one other card in the deck. If he added in, say, 4 Spreading Seas, then your chances of drawing both Halimar Wavewatch and Spreading Seas together are still slim. You would draw a Halimar Wavewatch once very twenty cards, and a Spreading Seas once every fifteen cards. Your chances of getting them both is not good. Therefore, Spreading Seas would be a bad addition in my opinion.

I would focus more on islands than swamp since over 80% of your deck is blue. And why is Scalding Tam in there??

Not a huge fan of it. Firstly, you need to play 20 lands for Hedron Crab to mill (unless you have more then one I suppose) and you only have 19, and only half of those can even give you mana. Furthermore, a majority of your lands will be tapped when they come into play, making your deck very slow, and you don't have much to hold your opponents back. And what if you don't draw Hedron Crab? You're only likely to draw 1 Hedron Crab every 15 cards, which is why its bad to focus a deck around just one card.

I would put in more cards with Landfall effects if I were you.

Where's Lotus Cobra? He would make this deck. Also I find Terramorphic expanse helpful in landfall decks, as it is basically two lands in one turn.

Evolution Charm would be a good card to consider. You really need some cards that give your opponent's creatures flying, or else you're reduced to playing this deck only as a counter to someone who you know uses a lot of flying creatures.
Predator, Flagship, Flying Carpet, or Pixie Queen, all accomplish this.

Good mill deck. Traumatize + keening stone is awesome. I'm not too into mill decks anymore though because the legendary Eldrazi make milling impossible. Still, good deck. Thumbs up!

Does training grounds reduce the cost of level-up? I'm not sure because training grounds only works on activated ablitties, and the text for level-up says "Use only as a sorcery".

I was thinking of Knight of the Reliquary, but I decided I wouldn't add to him just because he would be useless if I played Terra Eternal. I figured it was one or the other, and I decided on Terra Eternal because my deck just doesn't seem to need Knight of the Reliquary.

Just threw a bunch of lands? I'll have you know I spent a whole 4 minutes working on this deck! :P

I was thinkin about treasure hunt, but then I thought: That would more then likely just give me a bunch of cards in my hand and, subsequently, my graveyard.

I had a deck built around the same concept. Ivory tower is a good idea, but you might want to add in spellbook as well.
http://www.mtgvault.com/ViewDeck.aspx?DeckID=25471

Sign in blood is in there for a dual-purpose
At the start of the game it serves for giving me more cards in my hand, though obviously at the cost of my life. Later, sign in blood is efficent at making the opponent draw cards, lose life, and then being forced to discard them (like through mind rot), losing more life if I have a megrim out.

Thanks guys for all the votes. I just tried to do something different then what everyone else was doing, and it worked really well! Thanks for all the comments and thumbs up and the two people that voted for me :)

Yeah, it will boost my opponent's creatures as well, but as long as I have more creatures in play I'll get the bigger boost.

Actually, I don't beleive it will target red/white creatures that way. Since it only targets creatures that share a color with it, not the colors themselves, similar to Coat of Arms. If I give it to a red/white creature, it only means that it gets +1/+1 and each red and white or red or white creature gets +1/+1. You don't get +2/+2 just for a double match.
Still, thanks for the comments guys.

I never got the point of splicing in general. All it does is make the spell easier to counter, and can sometimes cost you more mana. I suppose there would be a point if you were planning to copy the spells but, otherwise I just don't see the point.

Seems alright to me. True, it is a little slow, but I like the idea. Once you get to turn 5, you could easily blow away an opponent (suspend Shivian Meteor on turn 3, turn 4 play reprucussion, turn 5 play radiate). Obviously, you have the problem of an opponent using a non-creature deck.
Pretty good. I'll give it a Thumbs up.