This deck grew out of a jeskai aggro shell I found online, and I decided to tweak it a bit to my tastes. 

First and foremost, I must point out Stonecoil Serpent's protection ability, making it hard to be blocked and being unbounceable by the likes of T3feri. As such, it's our number one vector for our auras, especially when coupled with its lovely trample ability. Its x cost also makes it a neat early game creature, cheap cycle with Jhoira, Weatherlight Captain, cheap boost for All That Glitters, while also letting it be a powerhouse later on, when you can cast it from the grave with Emry, Lurker of the Loch. Truly, this creature is amazing.

Ornithopter serves a similar, albeit significantly weaker role. First of all, it lacks protection - but does have flying. So when it comes to blocking, sometimes it's a better choice to glitter it up over Stonecoil. However, it's a good cycler for Jhoira, and can be used to chump block stuff if needed - and recurred with Emry.

Embercleave is a finisher, as you might've guessed. Slapping it onto a glittered creature is all but certain victory, but the pressure it provides by itself cannot be understated. 

Mind Stones give us ramp and cycling, and can be recurred by Emry for effectively 3,T: Draw a card (and with Jhoira, it's 3,T: Draw two cards). 

Karn, Scion of Urza is fairly simple to understand: card draw (even if weaker at first), or generating massive tokens. And I'm talking MASSIVE. It's not uncommon for his first token to be a 5/5. As you might imagine, that makes for an excellent Embercleave target.

As far as creature removal goes, I'm currently going with 2 glass caskets and 2 lightning strikes. The former has synergy with our artifact package, while the latter can get rid of some problematic stuff the casket can't touch such as Captain Sisay or planeswalkers as a whole, while also giving us some reach. The deck cycles fast enough that you seldom will need more than this.

On our sideboard, we have generic solutions to broad problems: Deafening Clarion deals with aggro decks, while God-Pharaoh's Statue puts a hamper on combo decks. Invoke the Divine and Disdainful Stroke are very helpful against any deck that relies on a 4CMC enchantment such as Smothering Tithe, Wilderness Reclamation or Fires of Invention, and the latter can prevent some threats from hitting the board. Then there's Sorcerous Spyglass, which single handedly cripples Kethys decks to such an extent, it's almost unfair.