Guild Buff:
Each guild able to select a buff, weekly.
Every guild member gets extra quest daily.
Every guild member gets 1 random adventure daily.
Every guild member gets 1 resource daily.
Every guild member gets 25% xp buff from advs.
Every guild member gets 25% transfer and movement acceleration in advs.
Every guild member's explorer doubles (length) returnings.
Every guild member's geologist founds two times larger deposit.
Every guild member's all (type) building halves consumption.
Every guild member's all (type) building doubles production.
etc...
Adventure buff:
Each type has 4 different strength; common, uncommon, rare, mechant. We can produce in rarity
Increases xp 10%, 20%, 30%, 40%
Increases loot 10%, 20%, 30%, 40%
Reduces enemy hp 10%, 20%, 30%, 40%
Reduces enemy attack dmg 10%, 20%, 30%, 40%
Reduces enemy accuracy 10%, 20%, 30%, 40%
Increases our hp 10%, 20%, 30%, 40%
Increases our attack dmg 10%, 20%, 30%, 40%
Increases our accuracy 10%, 20%, 30%, 40%
etc...
Common recipes from quest.
Uncommon recipes from events.
Uncommon and Rare recipes from a new campaign.
Merchant buffs only with gem.
Small chance we can get buffs from rarity search.
All tradable. After adv start, we can buff it (like zone buff).
Two feature suggestion.