This is my effort to figure out the best Dark Alessi build for set 5. I'll explain my changes.
Set 4 Dark Alessi's biggest weakness was aggro, Skycrag was nearly an auto-loss, this is why I'm running the new 3/3 Lifesteal Smuggler over a traditional Market.
Display of Vision may seem weak at first but it's an incredibly versatile and powerful card, I still throw it to the market often but learning how to use it is KEY. Board-wide battletricks, fast ramping or just killing aggro decks that go wide with small units is very nice but it also most relics and weapons!
EDIT: Display of Vision disappointed me greatly and it can't kill curses like Avigraft, I'm marketing a Burglarize but this card is still main-deck worthy.
Token of Vision makes the deck much more consistent but as a downside I had too few sigils, this is why I'm playing Banners instead. There is no reason for 2 Justice and 1 Time, you could 2-2-2 but 3 Shadow is important to play Auric Interrogator and Annihilate as we're playing 4 Combrei Banner to summon Alessi and Awakened Student more reliably. The chance of getting stuck at 1 Time with a Sword of Unity in hand and 6 mana is relatively minimum, it hasn't happened to me in over 30 games.
I'm feeling very happy about cutting Find the Way, I always hated it. It was a necessary evil for ramping and fixing but not anymore!
Other than that, this is a fairly standard Dark Alessi deck. I tried the new Empower units to make company to Awakened Student but it feels like the deck already has enough units, there isn't any new great removal spell (not Be Gone, please) and Tavrod is the only boss you'll ever need.