I think it's better than AP mid/control, gaining access to Maeve and more ramp for builders decree is huge. The list maxes out on the removal spells currently in expedition, and runs 4x alch + wasp since they are buffed by svetya and trigger maeve
The hermit gardener slot in the market is experimental, dunno what that should be
I know that no
The Speaking Circle is a hot take but honestly I think the card is kind of overrated or at least is not up to par with the other 6 drops Combrei has access to. Toucan and Svetya make enemy speaking circles much less impactful so you really don't have to worry about opposing circle decks here
I will certainly defend Forget and Expand the Reach in the market but the other two slots are not amazing or where I'd like to be if there are alternatives.
Forget is the perfect removal vs Elysian, as it acts as a kill spell (+revenge) against any of their threats and cannot be negated by dazzle, their only counterspell in expedition. It also can be played early enough to stop Wump from transforming if you're going first. Expand being market vs maindeck I personally believe it is better in the market since as I said before you're not really hoping to draw all of your ramp, you just want enough to get to 6 and then you want threats. I have not had issues with Monastery influence and I believe it is the better card since it gives you an extra sigil to play or market away.