This is my favorite deck that I've played exclusively the last couple days. Sailing fairly easy into diamond so far. Some quick thoughts, tips:
1. In case you haven't tried it, unwavering exorcist is an amazing counter to avigraft. Follow it up with a stand together and you're having a good time. Also great for popping permafrost on awakened students...
2. In the past, I never really wanted to draw more than 1-2 crownwatch press-gangs in my alessi decks, so moving 1 to the black market (and adding ripknife assassins to the main) has given the deck more tempo. I almost always grab my press-gang against aggro decks.
3. Crests are not where a deck like this wants to be when you're trying to smoothly curve into regent's tomb. The power base has felt very consistent.
4. Inquisitor's blade is my least tested card in the market, so if you find something more meta-relevant...
5. Don't forget Regent's Tomb's empower triggers. Helps interrogator's draw you cards as well.
6. Regent's tomb is pretty weak against most aggro decks, so swapping one for a press-gang is usually your best bet when marketing.
7. Xenan initiation might be a card worth trying, especially in certain metagames.
As always, I appreciate input and/or testing results.