*UPDATE 11/26* Took out Shihan and the Sentry for Seek Power and Lightning Sprite thanks to feedback. The deck is now much more consistently hitting 5 power, and Lightning Sprite definitely pulls it's weight before or after Yisha
Yisha/Spire + Siraf + Twist = DAMN, BOY!!!!
This is my attempt on Hooru Aggro/Midrange now that Yisha has been added to the expedition mix. This finally pushed me into Masters after being stuck in Diamond for some time.
Shen-Ra, Unbreakable / Varret, Hero-In-Training : early game aggro that has mid-to-late game applications if left unanswered. I usually mulligan hard for at least one of these in hand.
Parul's Choice : Using this to have Shen-Ra or Varret take out a defender and survive with aegis can REALLY get some momentum going and presents a more challenging target to deal with. You can also use this to pull a permafrost if you dealing with something gnarly that wants to meet your face.
Siraf, Grand Strategist : Pre-spire/Yisha, can be a turn 2 drop to help save your face from damage. Ideally, though, you'd want to drop this post-Yisha or Spire. A 5/5 for 2 is not to shabby, and him lasting till turn 5 (as a 5/5) and twisting can end games all by himself.
Lightning Sprite: Same argument as Siraf, and much less punishing for dropping him early due to the extra card draw. Late game being able to trade with Karvet after one twist has saved me more than once.
Hooru Pacifier: Also known as Hooru "Exalted-is-a-thing-and-I-don't-like-that" Pacifier. Completely shuts down any exalted strategies like Daring Gryffin, as well as Sodi's Spellshaper.
Aniyah, Arctic Sheriff: Have pesky blocker/attacker problems? Call the sheriff. The deck also has a few options to trigger her Aegis as well.
Sodi, Wingbreaker: Sodi and Shen-Ra pair VERY nicely together, giving you a reliable way to safely trigger her Onslaught in the event you're facing a dragon or other flying unit. Yisha and the Spire also make this a turn 5 6/6, which is nothing to sneeze at.