One: Faceless Summoner
As I said, Flamestrike only lost the number one spot on a technicality. Faceless Summoner would be our number two card, but it is from the most recent expansion. Blizzard weights the most recent expansion higher in arena, meaning you will be offered them far more often. This means you will see Faceless Summoner twice as often as Flamestrike. This is why it won first place, because it has a stronger weighting on the class at the moment.
All that said, Faceless Summoner is incredibly strong. While Ethereal Conjurer provides some value, Faceless Summoner provides insane tempo. The average three drop is a 3/3, meaning you get on average 8/8 of stats for six mana. Not only that, but it’s split up, making it difficult to clear. Silver Hand Knight is regarded as very strong in arena. It is a 6/6 for five mana, split up. Faceless Summoner is better in almost every way, blowing past its competition. Ethereal Conjurer had people upset over its rarity, but Faceless Summoner had people angry. Making this a common has single handedly ushered in an era of Mage supremacy in arena.
