MTG Salvation

So I'm trying to learn how to properly draft, did I build a decent deck? If not, what could I have done better?

Playing blue seems incredibly greedy, since you only have one piece of fixing. I would take out your 5 blue spells and play Accorder Paladin, Mogg War Marshal, Kami of Ancient Law, Rift Bolt, Knight of Meadow Grain, and probably swap out Young Pyromancer for Stonecloaker or maybe mortar pod. playing blue makes no sense here, as it seems to be only to support young pyromancer and really screws your mana up. I mean, you're trying to play searing blaze, heartfire hobgoblin, and then five blue cards off of an izzet guildgate and 3 islands; that's a good way to lose to your mana base.

You have the right idea, but Salmo is correct. Blue is overreaching.

Cut:
Hearthfire Hobgoblin / Young Pyromancer

• Viashino Firstblade
  
• Brainstorm
  
• Force Spike
  
• Mana Leak
  
• Turn // Burn
  
• Electrolyze

Add:

• Accorder Paladin
  
• Knight of Meadowgrain
  
• Mogg War Marshal
  
• Mortarpod
  
• Rift Bolt
  
• Soltari Monk
  
• Stonecloaker

Young Pyromancer is my question mark after cutting blue. Depends on your curve if you'd rather have bears over gray ogres here

I wouldn't cut heathfire hobgoblin, it's a 3 drop that you can always cast on t3 that hits for 4 and wins every combat versus an x/2. Probably one of the last cards I'd cut from a boros beatdown deck.