You should also expect to unlock new emotes and horse armor through the battle pass – as well as cosmetics which are class-agnostic, barring the transmog weapons which are class-specific. You'll only need to complete a subset of these objectives to advance to the next chapter, with item rewards and Legendary Aspects handed out along the way. You'll be able to track progress (regardless of whether you buy the battle pass or not) as part of the Season Journey tab in the UI, which will break down progression into seven chapters, with each containing a number of objectives. If you do decide to purchase the battle pass, you'll find 90 tiers of cosmetics, resources, and other items to bestow upon your new character on the Seasonal Realm.

It's worth stressing that the entire Season 1 story and mechanics can be enjoyed without purchasing the Season 1 battle pass. Blizzard has been keen to stress that there will be 27 free tiers to the battle pass which will allow you to earn cosmetics and Smoldering Ashes – a new resource which can be applied to the Season Blessing system, enabling you to invest in Seasonal Realm boosts such as more XP or improved Elixir effectiveness.

The Diablo 4 battle pass is set to go live on July 20 alongside the Season of the Malignant.

There are three socket colors but four different colored hearts, with the rare fourth being omni-color – as in, it can be socketed in any item and offer specific power sets that will change the way you pilot your character. There are 32 new Malignant powers which can be unlocked each Malignant Heart you collect will have a specific color coding, with each corresponding to a socket color that appears on gear collected on the Seasonal Realm. These can be socketed into gear and offer an enormous amount of power – so much so that the Diablo 4 team has joked that 'broken builds' can be generated by being smart with the new item. The Diablo 4 caged heart is essentially a replacement for gems. This will summon Malignant enemies in the area and a powerful elite which, if defeated, can drop a new item called a caged heart.

Defeat it and it will expose a Malignant Heart which you can use a cage of binding on to begin a ritual. Regardless of whether you are exploring the open world with your original character or with a Seasonal character, you will always have a chance to encounter a Malignant enemy. Diablo 4 season 1 is introducing a suite of new mechanics, systems, and items – all stemming out of the plague spreading out across Sanctuary.

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