Every Hearthstone "The Boomsday Project" Card Coming In The New Expansion

Hearthstone is gearing up for another expansion, and it looks pretty substantial. This time the update comes with a theme focused all around the noble pursuit of science. At least, as noble as it can be when headed up by the notorious Dr. Boom. The dastardly doctor has assembled a team of nine class-based scientists to manage their own wild experiments, to disastrous results. The Boomsday Project will add 135 new cards, with a slew of new card types and keywords. You can see every card coming in the expansion above.

The nine scientists make up the class-specific Legendary cards for this expansion. Boomsday Project will introduce Legendary spells for the first time, which are engineered to have big and unique effects. These will not, however, specifically synergize with the new Legendary class minions representing the aforementioned scientists.

"That's actually something that we talked about, linking them up so they work together, but we decided in the end, most of them are not going to work together," lead designer Mike Donais explained. "We wanted you not to have to own both Legendaries to sort of build the deck that that Legendary is focused on. So in most cases, you actually don't have any synergy between the two."

Another new spell type, Projects, focuses on symmetric effects that impact both players. The player who takes better advantage of these symmetric effects will have a huge leg-up on the competition. Due to their unique effects, these were especially tricky to play-test. We'll also see a new card, Shrink Ray, that could signal the return of Control Paladins.

New Omega cards will be playable throughout a game for a decent stat ratio, but are given extra power boosts if played once you've reached the 10-Mana threshold. Finally, a new Magnetic keyword will allow you to join Mechs together, inheriting their stats and any keywords or special abilities. As such, the expansion is introducing a lot of new Mechs--both Magnetic and frames that can be built upon.

The single-player component, the Puzzle Lab, will take a different tack than the last few expansions. Rather than a series of boss fights like Dungeon Run or Monster Hunt, these will focus on standalone puzzles. You'll have to spot the lethal, imitate the opponent's board state, or just survive, for example.

The expansion will launch on August 7, and Puzzle Lab will follow two weeks later. Two separate pre-purchase bundles are now available: a 50-pack bundle for $50 with a golden class Legendary and a Mecha-Jaraxxus card back, or an 80-pack bundle for $80 with the Mecha-Jaraxxus Warlock hero. Blizzard describes this pricing model as an experiment of its own, as the studio is still testing different types of pre-order bundles.