Cut those first two levels by a factor of 3 and see what happens. 3 and 5% for bronze and silver would incentivize major leveling in game and flip the broken dynamic of hoarding level 1 cards and renting them to the growing bot farms for yield fully destroying the lowest levels of the game for any human crazy enough to play a low asset deck in those levels right now. Land is very likely going to be a cure all for what the game is suffering at the moment but of course that is not going to full release anytime soon.