The Puzzle Lab is Possibly Hearthstone's Best Singleplayer DLC - Gameffine
All of The Boomsday Project Puzzles Cleared - Earn Your Card Back Easy! - News - HearthPwn
Brian Kibler on Twitter: "If you're looking for a sweet deck to finish off the ranked season, I've got you covered. This has been both the most fun *and* most successful deck
The tasks in Mercenaries actually start giving quite big rewards later on, definitely worth farming from Mysterious Strangers beyound the item at 7! : r/hearthstone