TECHNOLOGY · CIVILIZATION-SPECIFIC
Coiled Serpent Array
Spearmen and White Feather Guards gain hit points while close together.

Overview
Spearmen and White Feather Guards gain hit points while close together.
Effect and affected units
Coiled Serpent Array changes spearman line and White Feather Guard gain more HP in groups, up to +15% with 30 units in a 15 tile area. The affected target is +15% with 30 units in a 15 tile area; the bonus does not automatically apply to the rest of the roster. This is the main reason to research it; compare the affected units with the army you expect to field.
Research cost and timing
Research is available in Castle Age at the Castle. The recorded cost is 350 Food, 300 Gold, and the research time is 40 seconds. Consider whether the upgrade will affect enough units or workers to repay that investment before the match is decided.
Effect and research timing
Spearmen and White Feather Guards gain hit points while close together. Effect: Spearman line and White Feather Guard gain more HP in groups, up to +15% with 30 units in a 15 tile area. Research becomes available in: Castle Age; Research at: Castle; Research cost: 350 Food, 300 Gold; Research time: 40 seconds. This research is restricted to its named civilization, so it is part of that faction’s identity rather than a shared option. Its value depends on which units receive the effect and how often they take part in combat; timing it before a major engagement can improve the whole eligible group.
Research details
- Age
- Castle Age
- Research building
- Castle
- Research time
- 40 seconds
- Effect
- Spearman line and White Feather Guard gain more HP in groups, up to +15% with 30 units in a 15 tile area
Research requirements and effects for this entry.
- Focus
- Unique technology · Shu
- Signature / category
- Unique technology · Shu
- Release / context
- Civilization research
- Region
- Civilization-specific
- Classification
- Unique technologies