At the start of each game of Battlegrounds, five of the six currently available minion types (Beasts, Demons, Dragons, Mechs, Murlocs, and now Pirates) will form the recruitment pool for that game. The active minion types will be displayed while you’re selecting a Hero—you can also check anytime during the Recruit phase by hovering over Bartender Bob’s deck. To keep things fair, Heroes designed with synergies around a specific minion types will sit out if their corresponding minion type is unavailable.

Pirates will always be available in the minion pool until they join the rest of the shifting minion pool in a future update.