OK, I'm going to be a pain and ask..
Metro, Can I Do X?
I know we have the following paragraph from the general rules.
Yes, you can! No content from the base game and all expansions is out of bounds. If you’re not opening up the cheats panel, and assuming you’re following the General Rules and specific challenge rules, then you can do it. I sincerely hope the amount of questions and clarifications needed will be reduced with this move towards simplicity.
I must have read this wrong originally, because I was under the impression that EA content in general was OK. But when I re-read it, I see it only mentions expansion pack items. So my question is where do we stand on store items, mainly the premium content items that can alter game play and now the Tree of Prosperity from Lunar Lakes?