This is an Izzet deck I thought about, build, experiemnted, added/removed cards, and played alot now. It performce really well in BO1. Added a few cards i could think about for a Sideboard depending on craeture heavy matchups or control. 

The idea behind the deck revolves around mostly 1 card idea. . 

The concept is something i saw at a stream where he (the player) used it with Crash Through in a RDW. I was really cool. So I Thought about it and build around it with 1 cost spells. Opt, Shock, Crash Through are the early game meat for Deadhorde Arcanist.

Pteramander Is also amazing in this deck since it synergies with spells in your graveyard and it is an excellent 1 drop. Sure some cards will be exiled by Deadhorde Arcanist but it si fine in most of my game. You often adapt Pteramander on the mid/later game phase and on the opponents turn. 

Counterspells and burn are the meat for any control Izzet deck. Together with the bounce effect from Dreadhorde Arcanist and [Guttersnipe]]'s passive, it really kicks of when your board is set. If you ave a Ral planeswalker out aswell it really get's insane. One Ral, Storm Conduit + Guttersnipe or Spellgorger Wierd + Dreadhorde Arcanist, and a few shocks or opts or anything from the hand, and you get a really mean killing machine.

Total damage in this Scenario: 12 dmg. If you had a Spellgorger aswell or instead of guttersnipe, it would now be a 5/5 creatues.

Still not sure about the Counterspell combo. I tried Ionize but felt it to be abit clunky and slow. So I added Essence Capture instead. 4 Negate to protect your creatures. The Disperse is to bounce any big threat you cannot burn or counter. 

Good luck!

Edit 1: I removed Guttersnipe from the mainboard and replaces him with 2 Saheeli. She seems to be more consistent in this deck and provide us with 1/1 blockers. Who can also get really big if you copy a Ptmancer and then evolve it, then the counters added would still remain onto the articaft creatures. Same goes for Sellgorger Wierds ability. Guttersnipe had a habit of getting targeted very fast and shutdown almost immediatly.

Edit 2: Ran into alot of Esper control. Ionize is back on the table boys! -2 essence Capture. +2 Ionize