Lightning damage to one enemy
Thunder Beam (サンダービーム, Sandā Bīmu?), also known as Bolt Beam, is a recurring ability in the series. It is an ability most often used by characters riding the Magitek Armor, which deals Lightning-elemental damage to one target.
Thunder Beam is an ability used by anyone riding a Magitek Armor, which deals unblockable Lightning-elemental damage to one target with a Spell Power of 62. Thunder Beam is reflectable due to a bug. The ability is classified as an Attack magic in the mobile version.
Thunder is the sound caused by lightning. Depending on the distance and nature of the lightning, thunder can range from a sharp, loud crack to a long, low rumble (brontide).