Here are the benefits of alliances: At the 1st alliance level, the life recovery speed of all members' legends will increase by 15% and can research alliance items. At the 2nd alliance level, the mana recovery speed of all members' legends will increase by 15% and can research advanced alliance items. At the 3rd alliance level , the resource output of members is increased by 10% and alliance items can be researched. At the 4th alliance level, the life recovery speed of all members' legends will increase by 15% and can engage in alliance research. At alliance level 5, troop training costs are reduced by 15% and troop training time is reduced by 20%.