For anyone confused about Tower of Doom (both now and in the future), I made a video showing how it all works:
https://www.youtube.com/watch?v=Q-Y4iPPTxA8 (Now the correct link.)
I made this for my own Guild on day 1. We’ve refined some of the messaging since then. You may find it a useful reference for new Guild members, and any new people to the game.