Omen
The Wing-Footed
The favor of Hermes shall allow our troops to move as swiftly as the god himself.
Potential
Has DLC: 
Fate of the Phoenix
Fate of the PhoenixExact conditions
With Monarch power percentage in country (Diplomatic Ability): ×1 at 0% → ×2 at 100%
Formula: Monarch power percentage in country (Diplomatic Ability) + 1
Army Movement Speed+20% → +40%
god = hermes_god
country_modifier = {
scale = {
value = "monarch_power_percentage_in_country(power:dip)"
add = 1
}
}