You can earn this chest claiming a daily Clan Gift. List of possible items:
- Omar Soulstone
- Atlas Soulstone
- Animal Hide x5
- Claw Throne Shard
- Runic Seal
- Training Speed Gem (Common~Legendary)
- Leather (Common~Legendary)
- Tree Stump (Common~Legendary)
- Bone (Common~Legendary)
- Quartz (Common~Legendary)
- Assault Rune I (Common~Legendary)
- Assault Rune II (Common~Legendary)
- Assault Rune III (Common~Legendary)
- Assault Rune IV (Common~Legendary)
- Assault Rune V (Common~Legendary)