Growing Thunder (爆雷, Bakurai lit. Explosive Thunder) is a skill introduced in Fire Emblem Heroes. It is a special type skill which activates before the user initiates combat and deals damage to foes in a wide area around the target. The damage dealt is equal to the user's Attack minus foe's Defense or Resistance.
|Effects||Before combat this unit initiates, foes in a wide area around target|
take damage equal to (unit's Atk minus foe's Def or Res).
|Users||The splash area is a 7-tile vertical row, and a 3-tile horizontal row, with the target unit in the centre.