Efficient ramp and interaction , strong mana bases and fixing, and powerful individual card quality are all present here
Next, why we're reverting these changes now : Ideally, reversion of balance adjustments due to format legality would happen at the same time as the format legality of these cards changesi.e., rotation
Sebastian Rosenauer Archmages Charm
(2016-08-23) If you play multiple games after the draft, you can name a different card in each new game
its low cost and scaling with the number of legendaries means that ideally, you should play Mox Amber as early as possible
That price difference suggests that the players most excited for this unbanning care more about the idea of Braids, Cabal Minion than they do about her in-game effect