Chest types

Win a chest when you have an empty slot. Unlock one chest at a time, or use Diamonds to open it immediately. Each chest type has its own unlock time and reward categories.

Wooden Chest

Unlock time: 1 hours
20–30 Coins
1 hero shards
May contain an avatar or frame

Bronze Chest

Unlock time: 3 hours
40–60 Coins
2 hero shards
May contain an avatar or frame

Silver Chest

Unlock time: 8 hours
80–120 Coins
3 hero shards
May contain 3–5 Diamonds
May contain an avatar or frame

Gold Chest

Unlock time: 12 hours
150–250 Coins
6 hero shards
May contain 5–10 Diamonds
May contain an avatar or frame

Jade Chest

Unlock time: 24 hours
300–500 Coins
12 hero shards
May contain 10–20 Diamonds
May contain an avatar or frame

Unlocking heroes

Use shards to unlock heroes you do not own: Legendary 200 shards, Epic 100 shards, Rare 40 shards. Duplicate shards go to Spare Shard Storage; each hero can hold up to 2 times its unlock requirement. Excess shards become Coins, while stored shards can be exchanged or donated to clanmates.

Mailbox and gift codes

The Mailbox is on the Battle page (the icon next to Friends). Mail is split into three tabs: System (announcements, maintenance), Gifts (event gifts, gift-code rewards) and Personal (mail sent just to you). Tap CLAIM or CLAIM ALL to collect attached gifts; chests open right away. Mail expires after 30 days (shown in each letter) and unclaimed gifts are lost. Enter gift codes in Settings › Gift code: letters and numbers, up to 15 characters, each code once per player. After 5 wrong codes in a row you must wait 10 minutes.

Shop

The Shop does not sell power: hero shards are exchanged only for Coins. The exact contents of each chest are shown in the game before confirmation.