Chests are available in 5 different rarities. You can use the Wheels of Fate and open Chests at Kismets well.
Identifying a Chest
The color of the chest determines the rarity.
Common = White
Uncommon = Green
Rare = Blue
Legendary = Red
Primal = Gold
A chest can also be identified by it's spin type when looking at the inventory manager. (All information is also available in the well of kismet as text)
No icon over the chest = No Spin
3 White star icons = Paid Spin
3 Gold star icons = Free Spin
Obtaining a Treasure Chest
Each Booster Pack a player opens including those used in limited Tournaments contain one Treasure Chest of a random rarity of either common, uncommon, rare or legendary.
Each Primal Pack a player opens will contain a legendary chest.
Throughout the Account Leveling system you will obtain some Free Spin common, Free Spin uncommon and Paid Spin rare chests.
Players on PS4 CANNOT get Chests and instead get 4000 gold when they open a Booster Pack or Primal Pack.
Obtaining a Primal Chest
Unlike the other 4 rarities a primal chest cannot be opened from packs. In order to get a Primal Chest you need to use the Wheels of Fate to upgrade either a Rare by getting a double upgrade or a Legendary Chest by getting a single or double upgrade. While a Legendary Chest costs more to spin than a Rare Chest it works out cheaper to spin Legendary Chests due to only a single upgrade being necessary.
The ability to open chests was introduced with the Set 3: Armies of Myth patch on 21st July 2015. The rarity of a chest affects what can be dropped. A chest can be opened before spinning on the Wheels of Fate but you will forfeit the ability to use that chest with the Wheels of Fate. A chest can still be opened after doing the Wheels of Fate.
Common, Uncommon and Rare Chests reward 1 item when you open them, Legendary Chests reward 2 items and Primal Chests reward 3 items.
The contents of a chest is based on the set and rarity of the chest. So far every set has followed the same pattern for possible chest contents:
40 Common Equipment - Available from Common, Uncommon and Rare Chests
30 Uncommon Equipment - Available from Common, Uncommon, Rare and Legendary Chests
20 Rare Equipment - Available from All Rarities of Chest
12 Legendary Equipment - Available from Legendary and Primal Chests
4 Alternate Art Cards - Available from Common, Uncommon, Rare and Legendary Chests
1 Alternate Art Card - Available from Legendary and Primal Chests
1 Alternate Art Card - Only Available from Primal Chests
5 Rare PvE Cards - Available from Uncommon, Rare, Legendary and Primal Chests
1 Legendary PvE Card - Available from Legendary and Primal Chests
3 Mercenaries - Available from Rare, Legendary and Primal Chests
3 Sleeves - Only Available from Primal Chests
Common Stardust - Only Available from Common Chests
Uncommon Stardust - Available from Common and Uncommon Chests
Rare Stardust - Available from Uncommon and Rare Chests
Legendary Stardust - Available from Rare and Legendary Chests
Promo Stardust - Available from Legendary and Primal Chests
Booster Packs - Only Available from Legendary Chests *Note these Booster Packs Cannot grant Primal Packs
12 of the equipment drops will be for the 6 PvE cards also available in the drops.
3 of the equipment drops will be for the 3 PvE cards available from the sets Wheels of Fate.
The 3 sleeves will always have the same artwork as either the Mercenaries or Alternate Art cards also in the sets drops.