I suggest a 4 player brawl and a ranked system to brawl. I prefer brawl as I need only worry about one copy of a card. Yes there may be multiple cards with the same effect but only one can be had in each deck. Not sure what it would look like or if it would even be a part of the current ranking system, but I like receiving my rewards for reach platinum. Thanks for reading and I look forward to the future of MTG Arena.