Editing Thunder (Robin)

Thunder has 4 different stages, each with different projectile properties, damage, and knockback. Depending on what stage the attack is, the durability points used varies. A total of 20 durability points can be used before the tome breaks. When Elthunder is charged, the tome will flash yellow. When Arcthunder is charged, the tome will glow red. When Thoron is charged, Robin will put the tome away and launch the attack when [[B]] is pressed again.

| A small white jolt of electricity that travels quickly in a straight line. The fastest stage of the move, though with mediocre range, knockback, and damage, unable to KO even at 999%. Travels a little under half of [[Final Destination]], good for interrupting approaches at a safe distance. It can also be a combo starter at close range due to its low ending lag and knockback.

|A yellow ball of electricity that travels in a straight line with less speed than Thunder. A fairly standard projectile that travels around three quarters of Final Destination with decent KO potential near ledges and offstage (KOing at around 130% at the edge of Final Destination), and due to its quick charge time and range, it is a decent [[spam]]mable projectile. Charged after half a second. <br/>Japanese: {{ja|エルサンダー|Erusandā}}, ''Elthunder''

|A bright purple slow-moving ball of electricity that gradually picks up speed. Travels slightly further than Elthunder. On contact, it traps opponents in an electric 'X' shape while inflicting damage. It has little to no KO potential on its own in ''Smash 4'', but moderate KO potential in ''Ultimate'' due to a substantial increase in damage and knockback (KOing at around 125% near ledges). It is good for pressuring shields, although its function differs between games: the ''Smash 4'' version is tooled for followups as it gives Robin enough time to attack while the victim is trapped in the move, while the ''Ultimate'' versions is better for direct KOing. Charged after about two seconds. <br/>Japanese: {{ja|ギガサンダー|Gigasandā}}, ''Gigathunder''

|An extremely long beam of electricity that rapidly travels across the stage, dealing considerable knockback and passing through opponents and other projectiles. In ''Smash 4'', holding down the special attack button increases its duration from 84 frames to up to 92, and in turn increases damage; in ''Ultimate'', the duration is always 92 frames. It is the strongest version of Thunder, KOing effectively in both games: its high launch angle in ''Smash 4'' gives it reliable KO potential anywhere onstage at around 160% (150% if the button is held down), while its lower launch angle and higher base knockback in ''Ultimate'' makes it much more powerful near ledges and as an offstage finisher. The firing animation is distinct from the other charge levels as Robin tosses his sword during a turn and fires the Thoron via a back-handed manner before catching his weapon. This animation makes it very risky to use the air, as the player risks a [[self-destruct]] if they initiate it below ledge level. Thoron's hitbox is connected to Robin, and the entirety of the beam will move with Robin's movements if used in the air. One of Robin's reliable ranged finishers, apart from a thrown Levin Sword or tome. Charged after three and a half seconds. <br/>Japanese: {{ja|トロン|Toron}}, ''Thoron''

In ''Fire Emblem'', each class is restricted in what weapons they can use by how proficient they are in that weapon type. In many games, the anima magic categories organize their spells into a series of stages, with each spell being more powerful than the last and requiring more {{s|fireemblemwiki|weapon experience}} to use, and the thunder spells used by Robin in ''Smash'' are taken from these stages. While ''Fire Emblem'' does not have a charging mechanic for spells like ''Smash'' does for Thunder, it could be taken as a reference to weapon experience.

* {{iw|fireemblemwiki|Thunder|tome}} is the most basic thunder tome, and appears in every game in the ''Fire Emblem'' series. Its ball-of-lightning appearance in ''Smash'' comes from ''{{s|fireemblemwiki|Fire Emblem Awakening}}''.

* {{s|fireemblemwiki|Elthunder}} was introduced in ''{{s|fireemblemwiki|Fire Emblem: Genealogy of the Holy War}}'' and is one of the "El-" tomes, the second stage of anima magic, along with [[Elwind]]. Its ball-of-lightning appearance is original to ''Smash'', since it has always been a bolt of lightning in ''Fire Emblem''.

* {{s|fireemblemwiki|Arcthunder}} was introduced in ''{{s|fireemblemwiki|Fire Emblem: Radiant Dawn}}''. It is one of the "Arc-" tomes, the third stage of anima magic, along with [[Arcfire]]. The spell's X shape in ''Smash'' resembles how ''Fire Emblem'' shows it as many bolts of lightning converging on one target.

* {{s|fireemblemwiki|Thoron}}, the fourth and final stage of standard thunder spells, was introduced in the original ''[[Fire Emblem: Shadow Dragon and the Blade of Light]]''. Most ''Fire Emblem'' games portray it as a fast-moving lightning beam, like in ''Smash''.

In ''Fire Emblem Awakening'', Robin's starting inventory in the main game features a Thunder tome, and begins the [[fireemblemwiki:Invisible Ties (premonition)|Premonition chapter]] at the beginning of the game with a Thoron tome. In ''{{s|fireemblemwiki|Fire Emblem Fates}}'', Thoron is a special weapon which can only be used by Robin as bonus [[amiibo]] content.

ThunderRobinOrigin.gif|{{s|fireemblemwiki|Linde}} casts Thunder in ''[[Fire Emblem: Mystery of the Emblem]]''.

ElthunderOrigin.png|{{s|fireemblemwiki|Ilyana}} casts Elthunder in ''{{s|fireemblemwiki|Fire Emblem: Radiant Dawn}}''.

ArcthunderOrigin.png|{{s|fireemblemwiki|Maribelle}} casts Arcthunder in ''{{s|fireemblemwiki|Fire Emblem Awakening}}''.

ThoronOrigin.gif|An enemy {{s|fireemblemwiki|Mage}} casts Thoron in ''[[Fire Emblem: Mystery of the Emblem]]''.