Infantry Rush is a three-tiered passive type C skill which debuted in Fire Emblem Heroes; the individual tiers of the skill are known as Infantry Rush 1, Infantry Rush 2, and Infantry Rush 3 in order from lowest to highest. Units with an Infantry Rush skill allows any allied infantry units within 2 spaces of user with a certain amount of Attack higher than that ally's target to accelerate their cooldown counts per strike; the Attack difference threshold decreases with the skill's tier.
Accelerates cooldown for special skills by -1 per attack for any allied infantry units with within 2 spaces of user when target ally's Attack is 5 or more higher than target foe's Attack. Does not overlap with another Infantry Rush.
Accelerates cooldown for special skills by -1 per attack for any allied infantry units with within 2 spaces of user when target ally's Attack is 3 or more higher than target foe's Attack. Does not overlap with another Infantry Rush.