This deck is extremely unique. It is 3 decks in one, and is a super fast, super fun combo deck! I disliked modern but wanted to get into it, without copying anyone's decks online, so me and a couple friends came up with this.
We call this, Version 1. It is what the deck starts at. It is a mass polymorph deck into hellcarver demon, who when he hits, will (with the help of selective memory) hit a barren glory and worldfire. if i do, i choose which one triggers 1st, i select the worldfire, blowing everything away, and then use barren glory, end the turn, and win the game 100% of the time. this mode takes about 4-6 turns to get going, but often can stall until the combo comes out.
I run cards like mystic spec and see beyond to help get what i need ether on top my deck or away from my hand. For counters i run spell pierce and annul because most of what my deck fears are not creature based decks. And i run cards like Boseiju and artful dodge to help get my spells work and make sure my hellcarver gets through. Time warp, cobra, and bloom are just mana excel, but the tokens from awakening zone, and lotus cobra also work as mana excel as well as targets for mass polymorph.
in game two i normally side board to V.2(Below)
http://tappedout.net/mtg-decks/barren-glory-polymorph-wurm-modern-v2/