Looks amazing. Even Howl of the Horde and Galvanic Blast is 12 damage.

Your short on mana, when you took out 2 drums. Affinity already has a hard time getting to 4 mana, and Howl + Sharpnel Blast = 5.

Whipflare over pyro.

Added whipflare over pyro, Thanks!

Also, friends convinced me to drop Howl for more Art Creatures and they're right

And last tuesday I was 3rd in a tournament in my hood, from 12 people, that's not bad IMHO

So strange seeing an Affinity list without Arcbound Ravager, Ornithopter, or Inkmoth Nexus. I do like builds with Tezzeret though

Definitely needs more black mana producers to take advantage of Cranial Plating during combat and cast things consistently out of your sideboard. And those temple would be better off as Shivan Reef or Steam Vents so you don't have to risk slowing down your tempo. That is until you can possibly get a hold of more Glimmervoid and Mox Opal anyway. Probably take a r/b land out for an Underground River or Watery Grave for the black.

The Etherium Sculptor seems like a waste of four slots since everything in the deck is cheap.

Not too sure what Blinkmoth Nexus does for you since you're not running any Inkmoth Nexus. Though with Cranial Plating + Tezzeret, Agent of Bolas combo you don't really need Blinkmoth Nexus. Personally I would just replace Blinkmoth Nexus with Inkmoth Nexus to have that "oops 10 poison counters" factor.

Replaced them temporarily with Mountain and added Shrapnel Blast

After playtesting I think Blinkmoth Nexus is even good without the Inkmoth Nexus since of all the creature removal in my local meta, it's good to have a manland

And now I've got Inkmoth Nexus playset and 2 Arcbound Ravager this deck is not bad.

The Inkmoth Nexus are beasts I'm using them in unorthodox way with Mirran Mettle Apostle's Blessing Wild Defiance or Tempered Steel

Updated to normal affinity with better sideboard

My local meta has a lot of -1/-1 for all creatures :(

SO....

First I added Tempered Steel Then moved more into Apostle's Blessing vs flying 1/1'ers Mirran Mettle for 1 slightly more cooler than Ensoul Artifact for 2 as finisher instead. Which both combos with Wild Defiance