I added bite and trample damage. What should we use for natural armor?
Adamantine golem has +30. Increasing it a size category would be +3 more.
Its AC probably needs to be in the 55-65 range compared to other creatures of that CR. That would require a nat armor bonus of +50 to +65. How does +50 sound?
I think so. We'll see what BOZ has to say about it as well.
How high shall we go with the damage reduction? The adamantine golem is 20/epic and adamantine, so I figure at least 25/epic and adamantine. Is that sufficient?