"As the one member of Synod in this Spire, it falls to me to pay attention to the religious and social implications of what's going on here.
You don't fit into any of our existing categories, which is dangerous to start with. Claiming to be a god certainly doesn't make that any better.
It's possible we could slot you into the 'Eternal' category and work with you on that basis - limited individual deals on a clear trade basis with nobody subsuming their will or destiny to anything.
However, as a society we are generally quite wary of the Eternals too, for excellent reasons - none of them have a particularly human compatible value system, often they appear to want something nice, like equitable trade, and it turns out that in fact this means they support the slave trade and are confused when we get upset about that.
If a perfectly ordinary Autumn herald walked out of our lake and said 'hey, we can provide you with effectively unlimited quantities of white granite and mithril for road building projects, but to do it you've got to take our token and let us claim that bit of land', that would also cause a gigantic argument between the people who think they would very much like improved infrastructure at a very low apparent price, and will just go and enable it if it's as easy as bringing a coin home, and the people who think that's a bad idea because it would let a herald of unknown priorities - or any of the known Autumn priorities - have a lot of information about our Empire, and control over vital infrastructure, that they could use for betrayal or trade to our enemies or what have you.
Add your anomalous state of being, and you also have a considerable number of people who will be concerned about the long term metaphysical implications of using your services - there are already quite a number of people in the Empire who believe that dealing with normal Eternals can damage your soul, never mind some other entity.
So: some people would gleefully accept and apply your gifts, some other people would show up and attempt to destroy anything that resulted from them. We do have a legal system, but it's often hard to discover who did criminal damage to an unattended road segment, and also I suspect the people who provide Virtue defences would be able to claim they had no other mechanism to oppose you. Or they manage to actually get your coins and their results declared illegal, at which point we have an even worse problem.
The side that is actually using your gifts might consider them too much trouble before this turns into a full on war, but I doubt your opponents will back down so easily, especially given the previous attempt to magically enhance the entire Empire has just recently resulted in armies of heralds who wish to destroy all life appearing throughout the Empire."