The Guardian Cub Heading into the Blizzard Archive
Originally Posted by Blizzard
In approximately two weeks (no sooner than June 18), the titanically cute Guardian Cub will vanish from the Battle.net Shop and head into hiberation in the Blizzard Archive. If you’ve been thinking about adopting this in-game pet, now’s your chance before it's no longer available for purchase.
To pick up this pet or learn more about how it differs from other purchasable companions, visit the Battle.net Shop here.