While both an interesting initially fun idea, you completely missed the mark.

Not only are you exploiting an already broken economy within the game by making the vast majority of the cards "rare" (which defies the definition of the word) but instead of giving us a revitalized format that keeps the game from getting stale right after release as standard has been for some time now, you've simply given us a gate kept format that got stale right after release (there are literally 2 good alchemy decks being played and virtually all you face on ladder - mono black and clerics). I say that it is gate kept because it is a whale dominated format due to the exploitation of the broken economy. A for effort but you completely missed the mark.