Donating to every facilities raises the facilities' level.
When it reaches a certain level, it has the following effects:
■Guild Hall
The maximum number of members the Guild can have increases
■Amiba's Research
The number of play attempts and retries for the mini-game increases
■Fang Clan Chase
The number of play attempts for the mini-game and Judollars increases
■Supplies
The maximum amount of supplies increases