Perm champ OP.
This.
+I think a player should be eliminated at 3 losses, and the winner of the next match in the element to become Perma Champ?
Personally, I feel like 4 games is a enough to win, possibly a bit easy though. However, with your suggestion, 3 losses I get, but what about a totally uneven matchup for the "decider" game?
I know I'm not the only person in this boat, but I want to make sure people see this early on.
In early rounds of "Proving of Self" I did not like the constraints on deck building because there really weren't any. Giving players the option to use all of the elements with at least 6 in-element (including pillars and pends) seems too simple and not the best way to approach this part.
I definitely thought the later rounds put more [and better] constraints on building.
Just tossin' in my two 
Its the early round, I personally don't see why it needs lots of constraints? Means you have to anticipate more, but can bring anything you want. In the later rounds, the one mark per round was a pretty amazing idea. It helps a couple elements a LOT more than others, but it still makes you think really hard, and it makes it very hard to bring powerful decks. In my case, Novas helped a LOT with splahing, say unstoppables, but thats 12 cards in a deck. Makes for very interesting matches. But not gonna lie, I feel like the rules favor certain elements more *cough cough aether*, like running All the PUgons, all the fractal decks, and dimm shields when your opponent can only bring PC like 3/4 times (including BE, which nobody uses). Oh well though, I still had a fantastic time, not even mad about losing I enjoyed it so much
