EC match:
Shardgolem
Dark duo
Grabbow
DBHgrabbow
rt-splash
PUgons
dragontal
Pandestall with poison
Firestall
Sop+Squidaboms
SoV antimatterstall
I think the following more likely:
Dark-duo: Its probably Cals fault we have to do this and that would be the deck of his choosing
Shardgolem: An unusual deck that won far less than they liked; they probably want another go at it (especially since its a deck with playable SoSe and we know Ian loves them)
Rt-splash: Beats a lot of decks and they were upset they lost with it
DBHgrabbow: Because everyone knows we love DBH; also an awfully strong deck