Jalpino

you don't need the pike, you should loose the Halberdiers, and devils play, you should play test without Chandra, she seems too slow for what you're going for. I would pick up any combo of Nearheath Pilgrim and Boros Reckoner, Silverblade (to double spark trooper). and i would recommend a side board or topping off the main board with things such as, Vexing Devil or Legion Loyalist, or in a different direction things along the lines of Blind Obedience, Oblivion Ring or Fiend Hunter, Terminus, certainly Skullcrack, and I'd look for the room in the side for Frontline Medic and Intrepid Hero if you find games are taking longer.

because you have snapcaster mainboarded i would run a better draw spel than think twice and i would run hybridization for destruction

take out some big stuff for something small and agro, like strangleroot, it will help you not get controlled or run over to much early game if you're getting mana boned

you could make room for more creatures to keep you alive while you ramp if you run 16 post, 4 glimmerpost, 4 cloudpost, 4 vesuva, 4 thespian stage, i would run just 12 though you don't necessarily need the stage but ic could be argued that it's beter then vesuva

id find room for sckullcrack in the side

i would take elixers over the orb and the cain and i would try traben doomsayer for the close-to-death pump and the extra creatures and you do seriously want baneslayer

you definitely want hinterland harbor and i would throw in hunger of the howlpack and increasing savagery.

your lands are formated strangely, try running 4 Godless Shrine, 4 Isolated Chapel, burn the gates, and 6 plans and swamps, and if you're going to extort someone to death, look for more lifelink to keep you alive, it's not a quick way to win.

I would throw in some more Extort cards, some blink, and Sublime Archangel rather than have the smaller exalted cards, you could also play around with some life gain stuff, Griselbrand could be great or Lord of the Void, Avacyn, another big threat would help, Lilliana ramp is great, also I often find that Desecration Demon isn't worth having. love the deck though.

I would remove red and refocus the deck, its built on a good idea, the treats are off though, theres plenty of big green threats to play, and with all the counters I would think about UBG with the hydra, Fathom Mage, Necropolis, Corpesjack, and some control.

the staff isn't worth it and there's no realistic win condition. I also think your mana combination would make it difficult to play, i would recommend just playing UB control mill.

love the originality and the play style, nice

sounds good, but with that i would switch the enchantments you have with Asceticism and Vernal Bloom, it works a lot better than enchanting forests, and it protects your creatures form control, an if you have that combo out you may want to thing about maybe dropping your artifacts for a win condition, a simple Omnath with a rancor is GG at that point.

needs mana and draw mechanisms, maybe try playing with snapcasters and some storm spells

needs faithmenders, and if you want enchantments, you should have celestial mantel and true conviction

but remember you could also die between turns 1 and 3, or get controlled on, and it can be a game changer

try droping overrun for Eladamri's Call, and Llanowar Elves for Noble Hierarch, go down to two of each of the legendarys, grab at least 2 more mana, and find some more cool creatures rather than having those artifacts, you aren't going to need them, I'd try using strangleroot geists to keep you alive to make the mana gap and maybe adding rancors or Wolfir Silverheart they would each prove usefull, probably more so than the hydras.

id drop shriekmaw for some green hastys and put in colossal mights

i would try less land and possibly a few myrs if i could afford to play this deck

good cards but so meany one offs you'll never draw