Vantage (待ち伏せ Machibuse, also known as Ambush in the Japanese versions, Initiative in the French version, Vantaggio in the Italian version, Emboscada, lit. Ambush, in the Spanish version) is a recurring skill in the Fire Emblem franchise. It allows the user to initiate an attack when an enemy engages him/her in battle.
This skill is later integrated into the more advanced skill systems of Fire Emblem: Path of Radiance, where its effect is made more noticeable. However, in Fire Emblem: Radiant Dawn, Vantage becomes dependent on the user's Speed stat, meaning it will not be as consistent in terms of activation.
In Fire Emblem: Awakening and Fire Emblem Fates, Vantage returns back to functioning how it did in the Judgral series in terms of automatically activating when the user's HP is below 50%. In Awakening's Lunatic Mode+, an enemy exclusive skill of Vantage appears on enemies.
Vantage is an extremely useful skill for units to carry, as when activated, the user can follow up with other skills which can make them relatively dangerous to defeat if they fall below half health and have powerful skills such as Lethality on them.