Strange but interesting build, a little too much focused on creeps damaging (you have to wait until Bloodrazor before starting to make decent damage against heroes, but you should be able to Nashor very fast).

Masteries are bad, such as Quintessence : why getting 2 points in offense mastery (2 damage against minions) instead of 5% overall damage ? Even at level 1, you deal about 60 damage, which means 60*5% = 3 damage instead of 2 and even boost your skills and damage against champs.

Getting crit damage quinte is useless since you don't have enough crit (only triforce and PD). You should get some more ArP instead, it provides quite the same amuont of damage on crits, and helps even on non crit hits. Talking about Triforce, it's also a waste of gold IMO. It's really expensive though progressive to make, but useless at the point of the game you make it : it's a "first to make" item, if you have to. You already have Bloodrazor and PD, you need some pure damage, like a Black cleaver (suits really well with you ulti), an Infinity Edge, or a Bloodthirster.

Sunfire can help you resist a little, but seems to me if you want a defensive item, Guardian angel or Banshee are better.

this is a great build recommend it