I like the fire wall and occulus tower ideas. I’ve thought about a trap that could be put on walls for a little while now, and I think your idea could work. Though I do feel like needing dragon scales and gold feels redundant, maybe the rubies you suggested and silver(gotta flex those diversified funds xD)instead of gold?(could make for a better currency exchange market)
I feel like needing a command to use the occulus rod might be a bit tedious for something that changes what you see on screen, because that implies needing to use the command again to get out of the occulus tower’s view. I think using it the way scholar lenses might work instead, which would mean you would only need it in your hotbar to use quickly. I also think one rod working with multiple towers would make it quite the boon to have. Such as being able to move between tower views of the same color with the direction keys. So you could have rods for different sets of towers if you had say, a shop, an underground base, and a welli or a gale base.
The moat tile idea is a bit rough I think, and I’m not sure how the battering ram would work or how it would either change or improve raiding. The war drum doesn’t sound like a bad idea, but I think it would have alot of variables that would need to be worked out first.
Those are my thoughts lol.