I was thinking about fun thematic items for The Athar and came up with one I'm quite proud of which was inspired by a biblical verse. Specifically Judges 1:19
And the LORD was with Judah; and he drove out the inhabitants of the mountain; but could not drive out the inhabitants of the valley, because they had chariots of iron.
I thought it would be cool if the Athar actually had chariots that were somehow resistant to holy magic, but I have no Idea what that would look like. If anyone has any idea let me know.