None of this would help this version and I'd guess it's been discussed to death on Discord already anyway, but... I think it would be better gameplay all round if combinators levelled up with use. You wanna level a card quickly? Play it in as many formats as possible. There could be 'level up' perks which could be issued in a number of ways. As prizes for winning your league, tourney rewards, very rare pack drops, twitch prizes, etc.
Make each combinator pull feel special. Combinators could be level specific (iron, bronze, etc), but blank, so that the player can choose a card of that level in their collection to upgrade.
Top players would still have their advantage, I would definitely enjoy the game more, and it could still be very good for revenue.
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