5% of all Heroes, Tools and Dragons profits go to the shares pools
There are 7 types of Shares
Gems Shares Human Shares Elf Shares Dwarf Shares Gold Shares Wood Shares Food Shares
Each has its own pool, which is filled by players through mining. These pools are distributed every hour to the holders of the shares of that pools. That way you can adjust the currencies you're missing and buy shares for the right pools.
Shares can be bought by anyone for in-game currency. The price of the shares increases.
Shares are bought as NFT and can be sold on the secondary market.

The mechanics of profit distribution

The income is distributed only on the shares that have been staked. The share enters into force 24 hours after the staking. Unstacking action also lasts for 24 hours, but the player does not receive a reward for it.