Treasure chests and the Gold Chest
Only the party leader can open any chest.
Every Sky Token a character spends in Taiyi counts toward their Gold Chest: 5 to enter Taiyi Tower or continue into it, 2 to return after defeat, and 2 for each paid Silver card. Each spend shows "Gold Chest progress: N/300 Sky Tokens."
The total is saved on the character and is not reset by a new day, a weekly reset or a server restart.
When a party clears stage 3 (end of Fantian Forest) or stage 6 (end of Taiyi Tower) and its leader, inside the dungeon, has spent 300 or more, a Gold Chest drops. Claiming it takes 300 off the leader's total, so a leader with 650 gets a Gold Chest on each of the next two final clears.
The Gold Chest is free to open. The leader who earned it claims the Eclipse Fragment or gives it to a party member in the stage. If leadership changes it stays shut until that player leads again.
A Gold Chest left unclaimed when the party moves on is lost, but the 300 stays on the leader's total. Party members' spending never drops a Gold Chest for the leader.
Rewards keep each item's normal trade setting. Laifu Treasures, Dawn Fragments and the Eclipse Fragment are tradable.