Diablo 4 Season 15 has a new free pet, and yes, it is a bear
The Season Ranks also come with Mythic caches, Sparks, and 125 objectives.

Every Diablo 4 season needs something to give us a reason to grind through its seasonal objectives, and Season of Hell's Legacy is no different.
Season 15 comes with nine Season Ranks and 125 objectives, offering plenty of rewards along the way. And, as usual, there is one reward that is probably going to get considerably more attention than the rest: a new pet.
This time, it is the Dark Wanderbear.
Get the Dark Wanderbear Through Season Ranks
The Dark Wanderbear is one of the main cosmetic rewards available through Season Ranks, meaning you can add the little guy to your collection simply by playing through the season and completing its objectives. The pet is a reward for completing Rank VI, where you need to go through the Durance of Hate Seasonal Capstone in Hawezar. This one is equivalent to Torment 6 and Pit Tier 45.
Diablo players clearly have their priorities straight. Who cares about Paragon points when there is a tiny demonic bear waiting for you?

The Season Ranks contain nine levels in total, with 125 objectives to complete. Blizzard says this is more than last season, but around 15% of the objectives require the Lord of Hatred expansion.
You will need the expansion to complete Rank VIII and earn all of the Season Rank rewards.
Here Is Everything You Can Earn
Alongside the Dark Wanderbear, Season 15's Season Ranks offer:
Up to 14 Skill Points
Up to 42 Paragon Points
Up to 10 Resplendent Sparks, plus additional Sparks from Mythic Caches
5 Mythic Unique Caches
Dark Wanderbear pet
Banner of the Three Mount Trophy
2 Emblems
2 Titles, including Deckard's Confidant
4 Title Laurels
Crafting and Masterworking materials
Currency and Lair Boss Keys
Caches containing gear and materials
Runes, Sigils, Talisman Charms, and Seals
The rewards are also account-wide, so there is plenty here for players who like to keep progressing throughout the entire season on more than a single character.
There is nothing particularly surprising about the Season Rank system itself, but 125 objectives give Season 15 another long list of things to work toward. And at the end of it all, you will have a Dark Wanderbear following you around Sanctuary.
That is probably the real endgame, so get ready because the Season starts on September 15!
