The implementation of "Use All" and "Use 10" is very useful I apreciate this "quality of life implementation". But the gold key "mechanic" is very weird:
1 collect shards (you gain from completing all daily quests),
2 amass 200 shards, (you will have to clear all week's dailys to get all)
3 go to the book of souls,
4 convert the shards to a soul,
5 summon it to open a dungeon and gain a Golden Idol
6 the dungeon have a 8 hour limit or 3 times, whatever comes first

it is very convoluted... why not 1 hour of ilimited acess? or a Special dungeon in the Saturday, Lord of Ligth's dungeons are closed this day why not a special dungeon this day?