Hi there, I really love the concept of an investigate bant, I builded one myself when SOI came out with Roon of Hidden Realms as general, was the best option at that time. Chulane is a power engine thats speeds out your gameplan, still I prefer
rhino over him for versatility but you're right, we need a real commander for this color and mechanic to fit perfectly.
May I suggest you some cards? I saw that you don't run any token doublers like
Parallel Lives,
Anointed Procession,
Second Harvest or
Adrix and Nev, Twincasters and I strongly recomend you to, for me this are a must have to overwelm the battlefield with clue, that may be deadly with a
Nettlecyst, a
Mechanized Production or the new
Rise and Shine for finisher (I used to run March of the Machine +
Coat of Arms for the lols). Uh also
Inspiring Statuary is pretty good to turns your clue in mana rocks and feel them bit more useful.
Anyway nice deck, hope we get an investigator commander as some point, have fun and bye