Board Thread:Update Suggestions/@comment-28992768-20170201123917/@comment-25856498-20170202082909

Then they'll go back to the arena they last chose before they went up. You only have freedom of choice when you promote, not when you demote.

For example, if I chose Arena 4B and went to Arena 5, and then dropped, I'll go back to Arena 4B. If I dropped back to Arena 3, and subsequently went back to Arena 4, I can choose between Arena 4B and its parallels.

While in Arena 4B, cards from Arena 4A and all its other parallels will not be available. As stated earlier, while in Arena 5, you can obtain cards from Arena 4A, 4B and all their other parallels.