1. [Units’ advancement introduction]
When your castle reaches Lv. 15, Units’
advancement will be available automatically. Unit advancements will cost you
Lucky Stones and improves the attributes of your units. Attributes will be
effective to the corresponding units of all levels. Lucky Stones can be
obtained by occupying the campsite on the world map.
2. [Upgrade rules]
Each time you tap Advancement, it will add a
certain amount of EXP to the Advancement level of your current unit. The added
EXP amount is random, and has chance to get critical multiplier. When the EXP
reaches the MAX amount, one attribute will be selected randomly to advance. In
the Overview of the Attribute interface, you can check all gained attributes.
3. [Consumption rules]
Consumption amount will increase every time
you tap advancement for a single unit, the Added consumption value will be
reset on the next day.
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Game Guide for Clash of Kings