http://tw.battle.net/hearthstone/zh/blog/19819218/
競技場獎勵更新
在《銀白聯賽》推出之後，競技場的玩家獎勵將不只限於《哥哥打地地》卡牌包。玩家將
有機會得到《銀白聯賽》、《哥哥打地地》 或經典卡牌包作為獎勵。
Arena Reward Update
Beginning with the launch of The Grand Tournament, the Arena will no longer
award players only Goblins vs Gnomes card packs. Instead, players will have a
chance to receive a Grand Tournament card pack, Goblins vs Gnomes card pack,
or a Classic card pack whenever a pack is awarded.