Mythra (ヒカリ, Hikari) is a playable character in Super Smash Bros. Ultimate. She was confirmed as a playable character alongside Pyra during the February 17th, 2021 Nintendo Direct, and were released as part of Challenger Pack 9 on March 4th, 2021 in Fighters Pass Vol. 2. While her moveset is similar to Pyra's (aside from three of her Special moves and Final Smash), she is not classified as an Echo Fighter, and is instead a transformation semi-clone of Pyra. As such, Mythra is classified as Fighter #80. While Pyra is the selectable character by default across all palettes, the player can choose to start as Mythra by clicking on her in their fighter portrait at the character selection screen, in the same manner as one chooses which Pokémon to start with when choosing Pokémon Trainer.
In all regions, Skye Bennett reprises her role as Mythra in English and Shino Shimoji reprises her role in Japanese, both with all new voice clips.
Mythra is the faster Blade of the Aegis duo, possessing vastly superior speed and overall frame data to her counterpart, but weaker attacks and worse range. A light-middleweight weighing the same as the Ice Climbers, Lucario, Wolf, Villager and Steve, Mythra boasts the eleventh-fastest air speed, eighth-fastest walking speed, seventh-fastest falling speed, seventh-highest gravity value, fifth-fastest running speed and the fastest initial dash in the game, as well as decent traction. However, Mythra's full hop height is below-average, while her short hop, double jump and air acceleration values are merely average. Overall, this makes her a character similar to the likes of Captain Falcon, Sheik, Chrom or Little Mac; she is a very fast and generally offense-oriented character who excels at whiff punishing, tech-chasing, comboing, juggling and maintaining stage control in the neutral game, and has access to useful burst options as well. Being a swordfighter who fights with her Aegis Sword, almost all of Mythra's standard attacks (barring the first hit of neutral attack) are also disjointed as well, aiding her in directly challenging incoming attacks.
One of Mythra's greatest strengths is the speed and utility of her grounded moveset. Neutral attack is Mythra's fastest move, coming on frame 2; this makes it useful for intercepting opposing attacks or sometimes even approaching, the latter thanks to her incredibly fast ground speed. Her dash attack is fast by swordfighter standards, coming out on frame 9, and it also provides her with solid forward momentum that makes it fairly useful as a burst option. All three of Mythra's tilt attacks are fairly quick moves with all of them possessing the ability to start combos: down tilt has fast startup and very low ending lag, as well as fairly low knockback even at very high percents, allowing it to combo into most of her standard moveset; up tilt can combo into itself and/or most of her aerials; and even forward tilt can combo at low to mid percents. The speed of Mythra's tilts can make them difficult to react to, and good spacing can sometimes potentially also make them difficult to punish as well. Finally, her smash attacks are decently fast KOing options with solid range: forward smash comes out on frame 14 and is her strongest smash attack with the most range, but has the slowest startup of her smashes; up smash comes out on frame 9 and has a lingering hitbox, making it a decent out of shield option from the front; and down smash is her fastest smash attack, coming out on frame 8, and hits twice simultaneously on both sides. However, Mythra's smash attacks are fairly weak; they only KO at moderately high percents, even when fully charged.
Mythra's aerial attacks are also fairly decent as well. Her up, back and down aerials can all autocancel in a short hop, and except for down aerial, all of her aerials come out on frame 10 or sooner. Neutral aerial hits three times and provides good coverage all around her; similarly to Byleth's, it also possesses a landing hitbox, which can be used to start combos. Her forward and back aerials are good combo finishers (with back aerial more importantly also being useful for starting or extending combos), covering a decent area in front and/or behind her. Up aerial is a good juggle move, and has an extremely generous autocancel window, even more so than all her other aerials. Finally, down aerial completely lacks the meteor smashing capability of Pyra's equivalent move, but it is Mythra's most damaging aerial attack if hit with the clean hit of the move, and possesses the most KO power of her aerials as well.
Mythra's special moves are also fairly versatile as well. Lightning Buster is a chargeable move that comes out on frame 9 when uncharged; charging it increases the move's power, and the move even possesses a hitbox on Mythra's sword while charging (nicknamed the "bustersaw" hitbox); it can KO most opponents near the edge at around 100% with a mild charge, and it can even be used off-stage as a mixup to cover airdodges. Lightning Buster can even be reversed after charging, similarly to Mii Swordfighter's Blurring Blade and Sephiroth's Shadow Flare, which can potentially be used for mindgames. Photon Edge is a useful burst option which can hit up to six times and and has decent damage output as well; it can be difficult to challenge thanks to the move's hitboxes being placed on the multiple visible Mythra duplicates, none of which have a hurtbox, and it can also be used as a horizontal recovery option as well. Ray of Punishment starts on frame 10, making it a decent out of shield option when combined with the initial slash's hitbox, and the initial slash in particular combos into the resulting projectile; holding the special button or pressing it more than once turns the move into Chroma Dust instead, with the singular downward projectile instead replaced with multiple smaller projectiles. Ray of Punishment in particular is also an excellent combo finisher as well. As a recovery move, Ray of Punishment/Chroma Dust is capable of sweetspotting ledges while rising, and if Mythra goes past a ledge, the projectile(s) can somewhat cover her ledge grab. Lastly, Mythra can Swap to Pyra, exchanging Mythra's aforementioned speed with Pyra's superior range and damage output.
Mythra's grab game is not nearly as overwhelming as the rest of her moveset, but it is not without its uses. Her standing grab has average range, but it is slightly disjointed and is tied for the fastest in the game startup-wise. Her dash and pivot grabs also have similarly slightly disjointed grabboxes as well, with the former in particular additionally having decent forward momentum. Her pummel has average speed but an above-average damage output, making it a decent one overall. Down throw is her most damaging throw, and it is also her main combo throw, leading into aerials at low to medium percentages. Forward throw can confirm into dash attack at low percentages, and can also set up tech-chases and edgeguards. Back throw can be used for positioning or setting up edgeguards, but is less useful than down and forward throws. Finally, her up throw is her least useful throw, although it is difficult to react to and can potentially set up juggles.
In addition to her moveset, Mythra also possesses a special mechanic called Foresight, which functions similarly to Bayonetta's Bat Within. If Mythra dodges a few frames before she would have been hit by a move, Mythra takes roughly 50% of that move's damage and no knockback, while the opponent suffers additional lag and is put in a slowdown state similarly to Witch Time, allowing Mythra a free combo, neutral win or even a KO. This helps her disadvantaged state, as Foresight allows her to escape slightly untrue combos or juggles.
Despite her immense agility, Mythra is balanced by a severe lack of KO options (although swapping to Pyra remedies this completely). Outside of her smash attacks and charged Lightning Buster, none of her moveset reliably kills at the ledge at 150%; however, Mythra still has the ability to combo several of her weaker attacks into those moves (such as comboing down tilt into Lightning Buster via the "bustersaw" charging hitbox) for potential KO confirms, which may alleviate this weakness. Additionally, Mythra's raw damage output is also very poor, a weakness shared with Sheik. This also ties into yet another weakness that Mythra has; outside of her aerials, forward and down tilts, and sufficiently charged Lightning Buster, none of Mythra's moves are safer than -11 on shield, which can make her vulnerable to shield grabs and aggressive out of shield options if her attacks are not properly spaced. Also, her range is only average for a swordfighter, and she lacks a projectile outside of her up special, meaning she can sometimes struggle against certain zoners, although her excellent mobility compensates for that. Mythra's grab game is also not without its flaws, either; starting at higher percents, her throw combos stop being true, limiting the utility of her forward and down throws (especially the latter). None of her throws reliably KO either, even at Sudden Death percentages. Her only utility from her throws at these percentages is positional throws.
Her special moves, while decent, have weaknesses to balance them out. While Lightning Buster is a potential KO option, it only covers one side of Mythra (except for the first hit, which hits both behind and in front of her), leaving her open if misused. Photon Edge is very unsafe on shield and renders Mythra helpless if used in the air. It also does not sweetspot the ledge until after the move ends. Additionally, Photon Edge has transcendent priority, meaning that it is easily intercepted by most projectiles; and while the hitboxes have impressive horizontal disjoint, they are not very vertically disjointed from Mythra's main hurtbox, which is static and does not match up with the Mythra duplicates visible during the move, meaning that if she recovers using the move, she is highly vulnerable to meteor smashes from directly above (especially if she recovers low with the move). Ray of Punishment also covers decent vertical distance but little horizontal distance, although Mythra does have decent horizontal drift afterwards.
Perhaps Mythra's single biggest weakness, however, is her very limited recovery, a weakness shared with Pyra. Although she has very good air speed and her directional air dodge covers more distance than most others in the game (barring those of Ness and Lucas), her double jump height is merely average at best, her falling speed is incredibly fast, and as mentioned before, Ray of Punishment has poor horizontal travel distance, while Photon Edge leaves Mythra helpless and does not snap to ledges until the very end. If Mythra uses Ray of Punishment's downward projectile to stage spike an off-stage opponent while she is recovering, they can wall jump tech after getting hit by the projectile and punish her, similarly to the Tech Check technique. Mythra is also susceptible to semi-spikes, as getting hit by a sufficiently strong one means that she will be too low to use Photon Edge, and likely will not be able to cover the required horizontal distance with Ray of Punishment either.
Disadvantage can also be difficult for Mythra, though doable with Foresight. Her fast falling speed and high gravity render her susceptible to certain combos (such as Steve's jab/forward tilt combos), and her average-at-best air acceleration can make it difficult for her to adjust her aerial drift while being juggled compared to other speedy characters with superior air acceleration, such as Fox, Sheik and Zero Suit Samus. And unlike Pokemon Trainer's Pokemon Change, Swap does not grant intangibility until frame 6, making it inefficient as a combo breaker. (Also, Pyra's disadvantage is even worse than Mythra's.)
Overall, Mythra excels at zone-breaking and pressure, as well as whiff punishing, tech-chasing and stage control thanks to her incredible speed. She also has decent comboing and juggling options as well. However, Mythra's limited raw KO power and damage output more often than not means that she is dependent on Pyra's stronger attacks to KO opponents, and her poor and exploitable recovery makes it necessary for Mythra to remain on-stage more often than not.
Mythra's strengths generally outweigh her weaknesses, and players like Sparg0, Cloudy and Cosmos have demonstrated in offline competitive play that she is indeed a competitively viable character, especially when used in tandem with Pyra via swapping. Although Pyra and Mythra's shared viability when used together remains unclear in the long term, most players currently agree that the Aegis duo is at least high tier, with many considering them to be top tiers or potentially even a contender for the best character in the game alongside the commonly-accepted Pikachu and Joker.
Uniquely for clone characters, Mythra and Pyra act as a transformation character similar to Pokémon Trainer, and to Sheik and Zelda in Melee and Brawl. As typical of both transforming characters and certain pairs of clones, their movesets are designed to complement each other in a speed vs. power dichotomy. Mythra is characterized by an overall extremely fast mobility, and swift but weak attacks that give her a diverse combo game but difficulty in securing KOs, while on the other hand, Pyra has some of the slowest movements in the game, but a longer range on average than Mythra and overwhelming power comparable to that of most super-heavyweight characters.
While all of their special moves (except for Swap, which is required to switch between the two) are fully unique, the rest of their moves have identical animations, similarly to how they function as different variations of the same Aegis Sword moveset in their game of origin (aside from Blade Specials). In comparison to other clones, they have the same amount of different moves from each other as the full clone Young Link has from Link—with Pyra and Mythra just barely being semi-clones due to most of Young Link's different moves from Link being shared with Toon Link. Additionally, Mythra has a unique ability, Foresight, which acts as a form of dodge leniency, while Pyra has no similar ability of her own.
Overall, Mythra excels at the start of a match and when the player is at a disadvantage due to her superior speed and additional multi-hit moves allowing the player to quickly rack up damage and escape pressure. However, Pyra's superior damage and range, while leading to worse combo potential, allows her to close stocks much earlier and has much more combo enders that Mythra heavily relies on. While both are able to stand on their own in terms of usability, effective use of both in a battle is recommended to unlock their full potential.
All values here assume fully fresh dodges.
So far, Mythra has been slightly nerfed in update 12.0.0, with changes that are partially shared with her counterpart Pyra. Shared changes include increased hitstun on the second hit of her neutral attack, as well as reduced pushback against opponents while she is charging her forward smash, with the latter of the two being intended to prevent opposing attacks from whiffing against her during that state. Additionally, Mythra has less intangibility on her directional air dodge, preventing her from performing a completely intangible air dodge toward a ledge while recovering back to the stage; and Lightning Buster no longer has weight-independent knockback, which improves its KO potential against lighter characters, but worsens it against heavier ones.
Overall, these changes are not expected to change Mythra's competitive reception in the long term, as her key strengths and weaknesses remain unaltered.
For a gallery of Mythra's hitboxes, see here.
Note: All numbers are listed as base damage, without the 1v1 multiplier.
In competitive play
Since their release, Pyra and Mythra have received very positive reception from competitive players. This is largely owed to Mythra's outstanding mobility and frame data, overall one of the best in the game, alongside her unique Foresight ability, though this is at the cost of her damage output being largely unimpressive. On the other hand, Pyra brings to the table overwhelming power and range, while losing out on mobility and, to an extent, frame data. Their polarized attributes overall complement very well and leave the duo with few collective weaknesses (most notably, an overall mediocre recovery). Although it is unclear how exactly they will fare in the long run due to their recent release and the still-ongoing COVID-19 pandemic making offline tournaments relatively sparse at the time of their initial release, thanks to their strengths and results from players such as MkLeo, Sparg0, and Cosmos, most people consider the character to not just be top tier, but one of the best characters in the current metagame.
Most historically significant players
Classic Mode: Shared Destinies
Referencing the duality of Pyra and Mythra, the pair's route features pairs of opponents who are the same or similar. This extends to Master Hand and Crazy Hand at the end, who are always fought together, regardless of intensity. The items that spawn are from the franchise the characters are from (or in the case of Round 4, no items).
Role in World of Light
Despite their status as downloadable content, Pyra and Mythra do have a legitimate role in World of Light, as they appear in the base game as spirits in the Light Realm and the Final Battle respectively, meaning that they were vaporized by Galeem. The Mythra spirit is called as reinforcements by Galeem and is placed directly in front of Palutena and the real Master Hand, making her an obligatory fight to achieve the true ending. Defeating this spirit does not unlock her and Pyra as a playable character; rather, they are unlocked after downloading them and defeating at least 10 other fighters from Galeem's control, just like other DLC characters.
Mythra's fighter spirit can be obtained by completing Classic Mode; however, Mythra must be the one chosen as the front on the character selection screen to get her spirit. It is also available periodically for purchase in the shop for 500 coins, but only after she has been downloaded. Unlocking her in World of Light allows the player to preview the second spirit below in the Spirit List under the name "Mythra (Fighter)".
Additionally, Mythra has a support spirit as part of Ultimate's base game.
In Spirit battles
As the main opponent