In Fire Emblem Heroes it can be learned without inheriting by: Alm (Saint-King), Caeda, Camilla, Florina*, Rebecca*, Soleil, Tharja* and Valter*. Of these; only Alm (Saint-King) can learn the fourth tier without inheriting it.
When the user initiates a battle, their Speed is increased by 5 for that battle. It is learned by Sky Knights at level 1 or higher. This skill can also be learned at any level by Falcon Knights and Kinshi Knights if they did not learn this skill yet.
In Fire Emblem Heroes; it serves as a four tier A-slot passive that provides +2/+4/+6/+9 Speed during combat when the user initiates combat.
In Fire Emblem: Three Houses, Darting Blow is the mastery skill for the Pegasus Knight class. Similar to the variation in Fates; it increases the user's Attack Speed by +6 during combat when the user initiates.
|Effects||When user triggers the battle, double attack threshold +5|
|Notes||Learned by Sky Knights at Level 1.|
|Darting Blow 1||When initiating combat.||50|
|Effects||Grants Spd+2 during combat if unit initiates the attack.|
|Darting Blow 2||When initiating combat.||100|
|Effects||Grants Spd+4 during combat if unit initiates the attack.|
|Darting Blow 3||When initiating combat.||200|
|Effects||Grants Spd+6 during combat if unit initiates the attack.|
|Darting Blow 4||When initiating combat.||300|
|Effects||Grants Spd+9 during combat if unit initiates the attack.|
|Darting Blow||When initiating combat||-|
|Effects||If unit initiates combat, grants AS +6 during combat.|
|Notes||Learned by mastering the Pegasus Knight class.|