I played Zoo, Bug fish, Dredge, Bant, Blue Shops and the Show & Tell / Sneak Attack deck in the Swiss, losing to the Zoo deck. Red shops and Dredge in the top 8. Not the most difficult matchups I could've encountered, I must admit.

The main deck is basically set in stone, personal preferences aside. Academy could be a second Island, the Duress/Thoughtseize ratio can differ. I didn't miss Imperial Seal and the Ad Nauseam was really good for me. All in all, this is a very stable list which just does its thing and doesn't bother with winning with more flair than necessary.

I used every card in the sideboard and was mostly happy with it. Either the infest or Massacre should probably be a spot removal spell like Slaughter Pact to have an out for Iona. Sphinx was really good as a Tinker target, mostly because it only deals 8 damage with Confidant and Ad Nauseam, which happened three times when I had 9 life...

Mox Jet and Sol Ring are missing from my list.

Cheers,
Jos