Neat deck! I want to ask about the Bastion - I can see how it’s on-theme in a deck based around Structures, but it doesn’t seem to have any special synergies beyond giving you a Strategos proc, and the power level is pretty low. How did you find it played for you?
The Build transformation timings are a little weird. As you note, Architect “sees” everything that builds at the same time as it does, but in the same scenario, Vigilator’s buff is always lost on adjacent build minions. My guess as to what’s happening in the latter case is that he buffs the building structures themselves and then it’s lost when they transform, but I don’t really understand how. The order in which the cards are played doesn’t seem to matter.
Some additional trickiness when Build interacts with other effects: If you play a Timekeeper next to a Monument, causing it to finish building, Timekeeper will transform into an Ironcliffe. The same is true if you get a Monument off of Grimes’ Opening Gambit. In the opposite direction, however, if you get a Gate to the Undervault off of Grimes’ Dying Wish then the Gate will “see” Grimes’ death and spawn a demon. The former makes sense following the paradigm that Opening Gambits occur before the minion enters the board, but I can’t reason out the latter.
Dooly do be weird sometimes!
We have tons of arcanysts who snowball easily through spell procs, and the bbs package of Crypto-Mentor to really exploit Shidai’s bbs to the fullest. Juxtaposition, Assassination Protocol and Gotatsu double as cheap spell procs and soft removal, and especially Juxta is great for buffs early on since using it doesn’t depend on getting the mana tiles. Owlbeast should be prioritized early on to get a more resilient board, while Kindling and Bloodrage Mask can quickly end games when the opponent gets below 15 hp. Four Winds Magi is the perfect minion for this deck, providing heals, slight burn and a removal target all at once. I added one Twin Strike since I was too lazy to craft a third OBS, adding a Lightbender or two is also a good option although positioning with it might be a bit tricky in this deck. I’m not a huge fan of Hai in general as you may know, but I feel like this deck has a good balance between board control and burn without going overboard on the latter 


