Aaron, With all the good cards (blastoderm, burst) leaving standard, I must find a new strategy for fires (and spiritmonger is too hard to get, so don't try it!)  I went with burn/biggies, and maybe it can use some work.  I like it, though!

11 Forest
7 Mountain

2 Krosan Beast
1 Chlorophant
1 Shivan Wurm
4 Llanowar Elves
2 Spined Wurm
2 Howling Kavu
4 Horned Kavu
1 Shivan Dragon
1 Molimo, Maro-Sorcerer
1 Thorn Elemental
1 Raging Kavu
2 Firebolt
2 Flame Burst
4 Shock
3 Scorching Lava
1 Fires of Yavimaya (my only one)
1 Planeswalkers Fury
1 Planeswalkers Favor
1 Early Harvest
1 Mirari
1 Overrun
1 Natural Emergence
4 Hull Breach

Strategy?  Get a big guy and/or Fires early, and achieve Threshold to finish
with Krosan Beast/Overrun or either Shivan.

Avatar of Killing

-------------------

Avatar of Killing huh?  I'd say more like Avatar of Inconsistency!  

I'm kidding of course, but this deck is a perfect example of a deck that needs some help in deck building BASICS.

Lets start with the mana base...

I changed my mind... I'm gonna rant first.

Thank God Dark Ritual is GONE!!

Finally, Green is the color that has the only playable form of mana-acceleration.  This is as it should be!  Giving other colors access to mana acceleration like Moxen and Ritual has been the main reason why Green's been kicked around like the Redheaded stepchild in Magic for such a long time.  This is a very healthy time for the game... Jaime Wakefield has gotta be smiling somewhere.

(end rant)

Having said that, you MUST play with a full compliment of Llanowar Elves and Birds of Paradise.  Also, 18 lands is not enough even after adding the Birds.  I'd run 22 lands for a total of 30 mana sources.  An excellent land for the deck would be Keldon Necropolis as it'll turn all those late game Elves and Birds into 2 points of COLORLESS damage that can be thrown at the opponent or creatures.  (even Pro-Red ones!)

As far as the consistency crack... Mr. Avatar's deck has WAAAY too many cards of only one copy each in his deck.   Why the lone copy of Chlorophant for example?  Only running one copy means you'll rarely see it when you want it.  Take all those crap rare singles out and replace them with multiple copies of good cards like Wild Mongrel.  Running 4 copies of him in your deck means you'll be able to count on seeing him as often as possible.  When you build your whole deck like this and practice with the deck you soon start to get a good feel for how the deck will operate in any given matchup.  

Also, where the heck is FTK?!?!  You can't give me that "oh its too expensive" excuse 'cause it ain't even rare!  Flametongue takes out creatures of up to 4 defense... and then on consecutive rounds attacks the opponent for 4!!  

Here's what I'd like the deck to look like:

4 Birds of Paradise
4 Llanowar Elves
4 Wild Mongrel
4 Kavu Titan
4 Call of the Herd
4 Flametongue Kavu
3 Thornscape Battlemage
2 Shivan Wurm

4 Firebolt
3 Urza's Rage
2 Ghitu Fire

4 Karplusan Forests
10 Forests
6 Mountains
2 Keldon Necropolis

Look at all the interaction with Shivan Wurm.  This monster has so many excellent creatures to gate like BOTH the Kavu's.  Not only does Thornscape Battlemage deal GREEN damage (once again dealing with Pro-Red) but with a Bird on the board it can take out enchantments as well!  This thing can potentially generate 3-1 card advantage... and then you return it to your hand with Shivan Wurm so you can do it AGAIN!!!

Hope this helps... have fun!
Aaron