hmmm...i dont know. I dont have much experience with mono water, but still...
No offence, but: you say you tested this? Cause i really got problems to imagine that this deck will be really succesfull in T50 ...sorry.
Why?
-> the deck is not really fast, only big creatures. you may put 1-3 creatures on the table...thats it. That simply wont kill the enemy really fast...-> rush decks will probably kill you faster most of the time^^ -> abyss crawler might be a better idea, also 6 dragons are probably too much
-> the deck has no means of Creature Control or Permanent Control (well, mono water just cant do this) -> so any nasty creature or nasty permanents will pose a serious threat... -> stall/control deck will kill you most of the time...
You might want to look at some mono water decks (
http://elementscommunity.org/forum/index.php/board,32.0.html) of that link...you will probably notice that most of them use some sort of creature control e.g. ice bolt, freeze, arctic squid...these cards give you the necessary time to finish the game.
btw: the mark is missing...i assume its either air or water...
Here be rainbows (http://elementscommunity.org/forum/index.php/topic,11022.0.html), at least two of them...i personally like the Healbow...Furthermore SCEM (http://elementscommunity.org/forum/index.php/topic,18665.0.html) seems to me to be a pretty decent build, though i never tested it....ARRGH, just noticed that they are upgraded...your totally upgraded deck mislead me
Anyway, good old Grabix (
http://elementscommunity.org/forum/index.php/topic,16828.0.html) is also a pretty decent build, imho...
One last question: As your quite new in the forums (welcome, btw) and you are looking for unupgraded decks, i assume you just started...why developing a upped mono water deck? just curious