Legendary, Mythical, and Ultra Beasts: What's the Difference?

Why these terms get mixed up

When people talk about Pokémon, the word "Legendary" often becomes a bag for anything rare and powerful. The games, however, distinguish several separate categories, and the differences between them are quite concrete: you get them in different ways, their stats are spread differently, and tournament rules treat them differently. Below we separate four groups (Legendary, Mythical, Ultra Beasts, and Paradox Pokémon) and show what actually ties them together under the hood. You can always check which group a particular creature belongs to on the Legendary and Mythical lists in our Pokédex.

Legendary: one-of-a-kind Pokémon woven into a region's story

A Legendary Pokémon is one that appears exactly once in a single playthrough and is rooted in the history of its world. You won't find it in tall grass or in a random encounter. It waits in a specific place, usually after you meet story conditions: beating the League, solving a puzzle in a shrine, descending into a cave at the edge of the map. Their base stat totals start at roughly 570 and reach 680 for the strongest, and they often come with a signature move that nobody else can learn.

An important distinction: Legendary doesn't automatically mean "on the box." Mewtwo has been Legendary since the first generation, but it never graced the box of any of the core Kanto games. It sits in Cerulean Cave as an optional challenge for players who've finished the League. A box legendary, on the other hand, is the one that ends up on the front of the box and drives the main plot: Lugia and Ho-Oh, Kyogre and Groudon, Dialga and Palkia, Zacian and Zamazenta, Koraidon and Miraidon. These are usually the strongest creatures in a given game and the most common reason people buy a particular version.

Trios, duos, and themed groups

Legendaries rarely roam alone. The developers group them into sets linked by a theme, by type, or by a shared legend:

• The Kanto birds: Articuno (Ice/Flying), Zapdos (Electric/Flying), and Moltres (Fire/Flying). A template that's still repeated today: three elements, identical stat totals, one encounter spot for each.
• The legendary beasts of Johto, often called the dogs: Raikou, Entei, and Suicune. Their trademark was roaming the map and fleeing after the first turn, which turned catching them into a game of cat and mouse.
• The Regis: Regirock (Rock), Regice (Ice), and Registeel (Steel), sealed behind stone doors you had to open by solving a puzzle. Later they were joined by Regigigas, Regieleki, and Regidrago.
• The Eon duo: Latias and Latios, a Dragon/Psychic pair that also roams the region in Hoenn.
• The Creation trio: Dialga (time), Palkia (space), and Giratina (the Distortion World). The three pillars of Sinnoh mythology, bound together by their creator.
• The Tao trio: Reshiram, Zekrom, and Kyurem, that is, truth, ideals, and the emptiness left after they split apart.
• The Swords of Justice: Cobalion, Terrakion, and Virizion, all Fighting types with a second type chosen to fit the theme. Their fourth companion, Keldeo, is officially Mythical, which shows just how thin that line can be.

Legendary groups by generation

Mythical: the ones that aren't in the game

Mythical is a category defined not by power but by how they're distributed. What they have in common is that you can't encounter them during normal play. There's no cave where they wait and no story condition that unlocks them. They reached players through codes in magazines, vouchers handed out in stores, movie screenings, and online events lasting a few weeks.

This group includes Mew, Celebi, Jirachi, Deoxys, Manaphy, Darkrai, Shaymin, Arceus, Victini, Meloetta, Genesect, Diancie, Hoopa, Volcanion, Magearna, Marshadow, Zeraora, and Zarude, among others. That's why many players, even ones with hundreds of hours across several games, have never seen them outside of movies and artwork. If you started your journey during one generation, the window to get a Mythical from the previous generation may have closed years earlier.

Newer games have relaxed this rule somewhat: some Mythicals can be obtained in story expansions or in connected apps, but the principle stays the same. You need an event outside the main campaign. You'll find the full roster on the list of Mythicals.

The practical consequence: Mythicals are almost always banned in official tournament formats, even when their stats fall short of more than one box legendary.

Ultra Beasts: visitors from another dimension

The seventh generation added a category that doesn't fit any of the ones above. Ultra Beasts (abbreviated UB) are creatures from Ultra Space that slip into Alola through tears in space. In the story they aren't the region's deities or its guardians. They're intruders, and the game treats them as a phenomenon to study, not a legend to revere.

Mechanically, you can spot them by one thing: extremely lopsided stat distributions. Most have a total of 570, but split in a way you won't see anywhere else. Kartana has monstrous physical Attack and paper-thin Special Defense. Pheromosa is fast and strong, but almost any hit that lands knocks it over. Xurkitree is a walking special cannon, Celesteela is a heavy wall, and Guzzlord has an enormous pool of HP with embarrassingly low defenses. The list also includes Nihilego, Buzzwole, Blacephalon, Stakataka, and Poipole with Naganadel.

Two nuances are worth remembering. First, Necrozma is not an Ultra Beast despite coming from Ultra Space; it counts as a regular Legendary. Second, Poipole and Naganadel break the "Legendaries don't evolve" rule, because they form a normal evolution line. There's also dedicated gear for UBs: the Beast Ball has a greatly increased catch rate against them and a terrible one against everything else.

Paradox Pokémon: ancient and future versions of familiar creatures

The ninth generation went even further. Area Zero, at the bottom of the crater in the middle of Paldea, is home to Paradox Pokémon: variants of familiar Pokémon that supposedly come from the distant past or the distant future. The ancient forms are more beastly and massive. Great Tusk is a prehistoric counterpart of Donphan, Flutter Mane references Misdreavus, and Roaring Moon references Salamence. The future forms look like machines and carry "Iron" in their names: Iron Hands, Iron Bundle, Iron Valiant, Iron Moth.

You can recognize them by Abilities nobody else has. The ancient ones have Protosynthesis, powered by harsh sunlight, and the future ones have Quark Drive, powered by Electric Terrain; both can also be triggered by the Booster Energy item. The effect is the same: the creature's highest stat goes up by about 30 percent (or 50 if Speed gets the boost). Officially, Paradox Pokémon are a category of their own, neither Legendary, Mythical, nor UB, although some of them, like Walking Wake, Gouging Fire, and Iron Crown, were later added to the Legendary pool and are subject to the same tournament restrictions.

What they share under the hood

Despite their different origins, all these groups share a set of technical traits that give them away immediately:

• No evolution: with a few exceptions (Cosmog, Kubfu, Type: Null, Poipole, Meltan), they are final stages in their own right.
• No gender: most are genderless. Exceptions exist and tend to show up as quiz questions: Latias and Latios, Heatran, Cresselia, Enamorus, and Urshifu all have a set gender.
• The "No Eggs Discovered" Egg Group: they can't be bred. Every one in circulation comes from a game or an event, which is the main reason breeding them for perfect stats is out of the question.
• High stat totals: usually 570 and up, 680 or more for the strongest.
• Low catch rate: for Legendaries it's often the lowest possible, which can drag a battle out for dozens of turns.
• Format restrictions: the strongest Legendaries and practically all Mythicals are either excluded from official play or capped.

How to prepare for the catch

Since there's only one and a failed battle can be irreversible, preparation pays off. A proven order of steps looks like this:

1. Save right before the encounter. This is the most important point. If the Legendary faints, flees, or you run out of Poké Balls, you go back to your save instead of losing it for good.
2. Check your opponent's types. Before you set out, take a look at the type chart. The goal is for your attacks to hurt as little as possible while you still survive its hits.
3. Whittle its HP down to the minimum. False Swipe always leaves one HP, but it's a Normal move, so it won't work on Ghost-type targets like Giratina. There you need a fixed-damage move, or a very weak attack and a cool head.
4. Inflict a status condition. Sleep and freeze give the best catch rate multiplier, paralysis and burn a slightly weaker one. Note: with sleep, expect the target to wake up at the worst possible moment.
5. Pick the right balls. Timer Balls get stronger with every turn, so in a long battle they beat everything else. Dusk Balls work well in caves and at night, and Beast Balls only on Ultra Beasts.
6. Save the Master Ball for the runaways. A Legendary standing still will wait for you as long as you like. One that vanishes from the screen after a turn costs you far more time, and that's where a one-time guarantee is worth the most.
7. Guard against surprises. Keep a supply of status-healing items, watch out for moves that force a Pokémon out of battle, and make sure your opponent doesn't run out of PP, because then it'll start hurting itself and that ends in a knockout.

Once you have a few of these creatures and you're wondering which one actually makes the team, it's easier to compare them by the numbers than by eye. That's what the comparison tool is for. Usually it turns out that the choice comes down not to the stat total but to whether a given Pokémon covers the type gaps in your lineup.

A quick cheat sheet

• Legendary: it's in the game, but only one of it, and usually after a story condition.
• Mythical: it's not in the game; players get it only through events.
• Ultra Beast: a visitor from Ultra Space introduced in the seventh generation, recognizable by extremely uneven stats.
• Paradox: an ancient or future version of a familiar creature from Area Zero, with Protosynthesis or Quark Drive.

If you remember only one sentence, make it the availability rule: you catch Legendaries in the game, you're given Mythicals, and Ultra Beasts and Paradox Pokémon are separate takes on rarity that also happen to look strong on paper.