Joey G on Twitter: "12-2 in Duels with Token Druid. Greedy Gains is OP with spell generated minions. @neon31HS Thank you for the decklist. @HiMyNameIsJudge You are right, puzzle box is not
First part of the puzzle has been solved! : r/hearthstone
A New Mystery Card Back Has Been Added To The Game - News - HearthPwn
Puzzle Lab - Hearthstone Wiki
How to solve Hearthstone's biggest secret and earn the Mysteries of the Phoenix card back