My fellow teammates and I have been testing a pretty sweet Temur midrange list that utilizes the power of Saheeli Rai to generate big bursts of damage seemingly out of nowhere. There's nothing quite like ticking down Saheeli to copy a Regisaur Alpha, Glorybringer or Siege-Gang Commander (you get to keep the dino and goblin tokens). Even value plays like copying an Explore bro is fine. Here's the latest iteration of the deck:
I've been tinkering around with similar Saheeli shenanigans in U/R and more recently Temur as well.
I've found that fortunately you can support a consistent Chainwhirler manabase without sacrificing too much of anything, which is awesome because Chainwhirler is nuts, especially with Soul-Scar Mage (and obviously Saheeli).