Click the “Legion” icon at the lower right in the game to see the “Legion Research” tab at the top of the window. Click it to see the all new legion research options.
Details:
1. The concept of “Legion Research” is new in Clash of Kingdoms version 1.20. Legion research providing bonuses such as decreased marching time or increased attack for all members.
2. Legion credits are required to upgrade legion research. Legion credits can be bought for silver and donated directly by players or earned by taking part in Legion Mine Battles.
3. Legion credits are stored in the legion storehouse. The initial capacity of the legion storehouse is 100,000, but this limit can be upgraded.
4. Only the legion commander can use legion credits to upgrade legion research.