I've been experimenting a bit with this build, and I've had pretty good success with it so far in testing:
8x Guardian Knight
1x Stalwart Archer
1x Owl Familiar
It's pretty similar to the deck I ran at Gamer's Reunion, only it runs an Owl Familiar and Leah. You want to use either the OF or AHiB to get Leah out as your first Champion, and then grind it out for a bit with some aggressive hand dumping and Sera + Leah Healing. That will get some cards into your discard early to get decent Summoning Surges online. If Leah dies unexpectedly, you've still got the magic you built to summon Kal or Mal. I usually get all 3 champions out at some point, along with the odd 2x Priest + HJ here and there.