SpliNter

I think it's a well designed deck, I like it!
If I could change a thing, I'd cut one Familiar's Ruse for a Doom Blade effect. And probably cut one Pestermite for the fourth Scion of Oona.

Cute deck! Since you are playing that many creatures i think spellstutter is your best friend, id play all 4 of them! Also scion of oona should be 4 of - it puts a clock on your opponent very fast.
Peppersmoke is great but you dont have any other removal for bigger creatures, so make sure to add some go for the throat/doomblade.
There is also oonas prowler, a great card that would fit the rogue theme here.
Wydwen on the other hand - im not a big fan of

I dont think company into steel leaf necessarily wins the game. It is a great beater but i guess ezuri and shaman win games on their own. Elfes heavily rely on their one drops, i would not cut elvish mystic for steel leaf champion

I think i miss something here, what does prospector do for the deck? Why do you play 27 lands?

To me this looks a little antisemitic, jewish players could be triggered here. I recommend to change the name and description if you dont want to get banned. There should be no place for political or religious discrimination in magic.

Pretty neat casual deck! You lack in card filtering, top card manipulation. I would run 4 serum visions and like 2 opt for example. We dont have preordain in modern btw.

I dont think there is need for green. On the other hand there is essence warden in green. First id cut those 6+ mana spells

You could go up to 4 on pridemates and soul warden. Also add souls attendant. And there are a ton more one drops that gain you life when hitting the battlefield like soulmender or cathedral santcifier. That should make your deck way faster.

Steel leaf champion! What a big fat beater!

There is dreadbore and terminate in jund colors for your sideboard. Id rather cut one ezuri or visionary instead of llanowar elves. Otherwise i like it very much!

What do you think about brute force instead of stoke the flames? Its a neat combat trick/burn spell and you dont really want to convoke your creatures

Im really missing land destruction here. Id go full playset of field of ruin and full playset of spreading seas as well as a copy of sette the wreckage. Not a big fan of 2 sphinxs revelation though, one should be enough.
23 lands is enough? My uw list usually run 25-26 lands.
I like the entreat the angels tech there!
Keep on tweaking, the meta is going to shift anyways.

Hi! Great built deck. I recommended it here if you dont mind

http://www.mtgvault.com/mooshu038/decks/resilient-angels/

Also kills all fetchlands

Nice deck! I think 4 revelations is a bit too much. Id rather play +1 remand and +2 think twice

+1
I'm not into EDH, but this makes me wanna play!

Tron is getting even more challenging with this i guess

so then i guess you found the best for your budget. well done!

I love Faeries! They get stronger if you add black to your deck for removal and some neat black Faeries.
But for budget, blue is okay.

Here I have some suggestions:

I would cut some amount of your specific counterspells and go up on mana leak instead, because it is more flexible.
Also I would add Favorable Winds and Scion of Oona to grow your Faeries.
A few Echoing Truth would also fit nicely to bounce permanents that Vapor Snag does not hit.

It could look somewhat like this:
http://www.mtgvault.com/splinter/decks/budget-modern-faeries/

Nice tech with cinder glade and revelry in the sideboard.
I dont think electrickery is needed, also a second lavamancer is not that great.
I would rather go up to 4 searing blood, since it is that good against mostly all creature decks. Think about hatebears, elves, affinity, birds of paradise...