Single-Staged Pokémon: Pokémon (plurial) that do not evolve and have no pre-evolution, and is not considered as a Legendary Pokémon, Mythical Pokémon and is not classified as an Ultra Beast. Single-Staged Pokémon with Mega Evolution or other form are still considered as Single-Staged, while those that receives a new pre-evolution or evolution in later generations are not unless if it is their regional form that receives an evolution instead, i.e. Galarian Farfetch’d can evolve into Sirfetch’d, while regular Farfetch’d still cannot evolve as of Sword and Shield.
Pokémon that were once single-staged in their debut generation until a certain point can still be discussed if their debut is particularly bad.
Additional Rule: Don’t make in-depth details on how to fix them is not recommended as it can fall into wishlisting. Just saying that it could benefit stat buff, new evolution or reworking its mechanic is okay; telling how it will look like if evolved, or giving a heavy rework on how it should be done instead, is ill-advised for sake of not wishlisting.
Single-Staged Pokémon are an interesting group of specimens. Their lack of evolutionary line, in theory, encourage the player to become more profound of the base form even if they cannot evolve thus become stronger, or is rare but pretty powerful on the spot that reward players who managed to find one.
Unfortunately, as several polls like these ones from another forum shows, many single-staged Pokémon tend to be least favorites. The only notable single-staged Pokémon that tend to be major favorites are Lapras, Pachirisu to an extent, Hawlucha, Mimikyu, Dracovish and Cramorant. How so?
It turned out that many of them are either too weak or too mediocre to be worth using if obtained in mid-game or worse, late-game, have an uninteresting or even appalong design, have an interesting battle concept but failed to successfully make use of it, or all of the above. Strangely, these problems are more common with single-staged Pokémon than with Pokémon with evolutionary lines. While each of them have their own fans, it can be said with practically every Pokémon.
Here are three prime examples that failed as single-staged Pokémon and why are they are as such.
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Volbeat and Illumise are a combination of unappealing designs, mediocre stats and not adding anything much to the Bug-type, not helping their already shaky reputation back then. While they may have uses in Contests, they are usually scarce and found in one place, as well as difficult to capture. This make them feels especially unrewarding. Volbeat is a culprit of butchered potential, with Tail Glow greatly rising Special Attack but does not have the stat to make the full use of it outside of cleaning weak Trainers.

Eiscue, while appealing for a few, comes off as ridiculous in a bad way for many others. The design doesn’t do much to disperse predator - it might instead gather their attention due to how big the Ice Face is - but the titular Ability is situational at best. It provide a single immunity against any physical moves, and can recover its Ice Face upon using Hail (shall that move succeeds) or if a Pokémon with Snow Warning switches in. Problem is that Special Attackers can just ignore this Ability, and it’s Defense (110) is unnecessarily high as it will block a single physical move anyways in it’s Ice Face form. While it may be a threat if allowed for Belly Drum, its limited learnset doesn’t allows it to wallbreak against many defensive threats.

For all the unnecessary slow speed problem that plagued most regualr Gen 7 Pokémon, Gen 7 is definitely no exception of the trend where single-staged Pokémon rely more on a gimmick to be more interesting, for better (i.e. Oricorio in-game, and Mimikyu overall) or for worse, which is traced way back to both Generation 1 and 2.
Bruxish fits the latter by a landslide. Bruxish sports Dazzling, which prevent the opponents’ priority moves from working. Problem is that not only Bruxish‘s 92 Speed isn’t all that impressive cannot be boosted, but it’s other stats aside of a middling 105 Attack, to which one would rather be using Strong Jaw as it works well with STAB Psychic Fang. It also have an outright appaling design, with the “teeth on lips” and psychedelic colors that will hurt people’s eyes more than it appeals them.
What are non-evolving Pokémon you think are rather mediocre if not downright awful?
Pokémon that were once single-staged in their debut generation until a certain point can still be discussed if their debut is particularly bad.
Additional Rule: Don’t make in-depth details on how to fix them is not recommended as it can fall into wishlisting. Just saying that it could benefit stat buff, new evolution or reworking its mechanic is okay; telling how it will look like if evolved, or giving a heavy rework on how it should be done instead, is ill-advised for sake of not wishlisting.
Single-Staged Pokémon are an interesting group of specimens. Their lack of evolutionary line, in theory, encourage the player to become more profound of the base form even if they cannot evolve thus become stronger, or is rare but pretty powerful on the spot that reward players who managed to find one.
Unfortunately, as several polls like these ones from another forum shows, many single-staged Pokémon tend to be least favorites. The only notable single-staged Pokémon that tend to be major favorites are Lapras, Pachirisu to an extent, Hawlucha, Mimikyu, Dracovish and Cramorant. How so?
It turned out that many of them are either too weak or too mediocre to be worth using if obtained in mid-game or worse, late-game, have an uninteresting or even appalong design, have an interesting battle concept but failed to successfully make use of it, or all of the above. Strangely, these problems are more common with single-staged Pokémon than with Pokémon with evolutionary lines. While each of them have their own fans, it can be said with practically every Pokémon.
Here are three prime examples that failed as single-staged Pokémon and why are they are as such.


Volbeat and Illumise are a combination of unappealing designs, mediocre stats and not adding anything much to the Bug-type, not helping their already shaky reputation back then. While they may have uses in Contests, they are usually scarce and found in one place, as well as difficult to capture. This make them feels especially unrewarding. Volbeat is a culprit of butchered potential, with Tail Glow greatly rising Special Attack but does not have the stat to make the full use of it outside of cleaning weak Trainers.

Eiscue, while appealing for a few, comes off as ridiculous in a bad way for many others. The design doesn’t do much to disperse predator - it might instead gather their attention due to how big the Ice Face is - but the titular Ability is situational at best. It provide a single immunity against any physical moves, and can recover its Ice Face upon using Hail (shall that move succeeds) or if a Pokémon with Snow Warning switches in. Problem is that Special Attackers can just ignore this Ability, and it’s Defense (110) is unnecessarily high as it will block a single physical move anyways in it’s Ice Face form. While it may be a threat if allowed for Belly Drum, its limited learnset doesn’t allows it to wallbreak against many defensive threats.

For all the unnecessary slow speed problem that plagued most regualr Gen 7 Pokémon, Gen 7 is definitely no exception of the trend where single-staged Pokémon rely more on a gimmick to be more interesting, for better (i.e. Oricorio in-game, and Mimikyu overall) or for worse, which is traced way back to both Generation 1 and 2.
Bruxish fits the latter by a landslide. Bruxish sports Dazzling, which prevent the opponents’ priority moves from working. Problem is that not only Bruxish‘s 92 Speed isn’t all that impressive cannot be boosted, but it’s other stats aside of a middling 105 Attack, to which one would rather be using Strong Jaw as it works well with STAB Psychic Fang. It also have an outright appaling design, with the “teeth on lips” and psychedelic colors that will hurt people’s eyes more than it appeals them.
What are non-evolving Pokémon you think are rather mediocre if not downright awful?
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