During Ash's tenure as the hero of Pokemon anime, fans were introduced to dozens of creatures who would become important and beloved members of his various crews. Considering that Guy is one of the strongest trainers in the series, it's no surprise that he's able to instruct his partners to become powerful and effective fighters. However, despite Ash's innate talent as a trainer, he was often blessed with the luck of finding Pokemon whose power was beyond average.
On several occasions, the hero's trusted monsters displayed levels of strength and resilience that could rival the strongest Pokemon in the entire franchise. Ash are also often hidden creatures with unique abilities that make them many times more powerful than other members of their species. Although examples of this phenomenon are not few, only a handful, among the hero's strongest Pokémon, can be seen as truly overpowered.

Pokemon fans have decoded Pikachu's “Pika-Speak” language
Pikachu's limited vocabulary of repeating syllables may actually be a sophisticated form of communication, with fans noticing certain patterns.
10
Gible
Most of the time Pokemon As fans are aware, first-stage evolutions tend to be weaker than their final versions, even if they are part of the line of one of the strongest pseudo-legends, like Gible. As such, when fans were introduced to this adorable and wild creature, they hoped to one day see it evolve into Garchump, who could become one of Ash's strongest partners. Gible training to become the most famous user of the Draco Meteor in the world no one saw coming.
Despite being a small and somewhat weak Pokemon, Ash's little friend was capable of unleashing powerful attacks that could knock out even fully grown opponents. The power level this monster displayed was unlike anything a first stage evolution had seen in the past. Gible more than earned his place as one of Ash's best Dragon-Types despite his young age and low stats.
9
Incineroar
Despite being one of the most skilled coaches in the Pokemon anime, Ash never relied on his experience and strength alone. Never to be stagnant, he would often seek the help of other powerful fighters, viz Sun and Moon The era of anime. After receiving a powerful but inexperienced Torracat. Kukui, one of the most amazing professors in the franchise, offered to help train the cat-like monster, as he possessed the powerful Incinerator.
Ash's fire-type friend learned a lot during its training, eventually becoming powerful enough to defeat its mentor in battle, before it was fully evolved. This victory gave Torracat enough battle experience to unlock his final transformation, becoming a powerful Incineroar. Sadly, this version of the Pokémon was never used by Ash in battle, although its past suggests that it would have been much stronger than other members of its species.
8
Gengar
Arguably one of the characters with the most tragic backstories and a fundamental part of Ash's formidable team, Gengar was a trickster with a heart of gold and a natural talent for battle. Joining the hero after being abandoned by his original trainer, this adorable ghost-type worked hard to become a reliable teammate, and he accomplished his goal. Its attacks were more effective and powerful than regular Gengar's attacks, helping Ash greatly in battle.
However, what really helped this Pokemon stand out from the rest was that it had the elusive Gigantamax Factor. Thanks to this, and the fact that Gengar is one of several species that can access the Gigantamax form, Ash can use this ability to increase his friend's strength. With this power boost, the mischievous hero was able to defeat much stronger opponents such as Marnie's Grimsnarl.
7
Crocodile
Because they are always the decisive factor in the war, it is no secret Pokemon Fans of the types and their strengths are the most important aspects of the series. Even if a trainer's creature has more power or is more resilient than its opponent, a bad typing match-up can result in a loss. While this is the case for almost all monsters in the anime, Ash's Krokodile seems to be able to ignore almost all types of weaknesses, as evidenced by his impeccable record.

A Pokemon fan uses a 3D printer to create the jaw-dropping Gengar Lich King
A Pokemon fan uses a 3D printer to make Gengar wear the helm and mantle of one of Warcraft's iconic rivals, The Lich King.
One of its greatest achievements comes from Ash's battle against Brycen, one of Unova's strongest trainers, who specializes in direct counters to the Ice-type Pokémon, Crocodile. Not only did the crocodile-like monster manage to withstand several attacks that were very effective against it, but it also defeated some of its opponents' most powerful partners. Being able to survive constant Ice-Type attacks, when a single one should be able to parry it, makes the Crocodile a unique and rare member of its species.
6
Charizard
One of the best and most popular Pokemon of the original 151, as well as one of Ash's oldest friends, Charizard's story is one of friendship and resilience. During the original Indigo League series, considered by many to be one of the best seasons of the show, the iconic creature was known for disrespecting and disrespecting his trainer. It took time and special training in the Caricific Valley to turn him into a reliable and influential partner.
Charizard's Fire-type attacks were already very powerful, probably in the top percentile of its species, but it really shined thanks to its impressive physical strength. The rigorous training it underwent enabled it to fight toe-to-toe against opponents that should easily defeat Ash's friend. Gary's Blastoise and Nolan's Articuno were both defeated by Charizard's devastating Seismic Toss. So it's no surprise that this beloved character is one of Ash's best Pokemon in terms of win rate.
5
hidden away
For more than a decade, since its first appearance Diamonds and pearls Over the course of the franchise, Lucario has become one of the most popular Pokemon of all time. It's easy to see why, as it's not only one of the best designs in the series, but it's also an extremely useful team member. When Ash was able to get Riolu, who felt a strong aura from the boy, fans expected it to become the hero's ace in no time.
As expected, that's exactly what happened, with Lucario evolving into an important asset to Ash's team. travelThe Age of Anime. Its usefulness grew to the point that it became the second Pokemon to bond with a hero at such a level that it unlocked a new level of Aura control. Lucario's moves were also linked to Ash's, giving him increased agility and reaction time. While this bond isn't unique, it's fan-favorite Pokemon As the movie proved, it was very influential.
4
Infernape
who grew up during Diamonds and pearls era of Pokemon The series will remember Ash's Chimchar, one of the creatures with the best character arcs and impressive growth. Originally a member of Paul's crew, the ape-like monster was shunned because it was considered weak and useless. Ash, who could see the best of all Pokemon, took him on as part of his team, training him to be a true threat in battle.
After evolving into Infernape, its meek personality was replaced by a strong desire to prove its worth and physical strength that could rival lower level Legendary Pokémon. This creature was able to defeat opponents quickly with precise and devastating attacks. If the initial strike wasn't enough, Infernape also had the Blaze ability, which dealt even more serious damage to his power, easily making it one of the best Fire-types ever.
3
Septile
While who plunged into the world Pokemon While video games know that Sceptile is one of the worst starters, Ash's partner rose above this stereotype and became a respected and fierce warrior. Trained as a Treeko, this creature distinguished itself due to its extreme strength and ability to stun opponents.
While its physical strength wasn't remarkable among Ash's other Pokemon, its speed and combat intelligence were above most others. Sceptile often uses its speed to tire opponents out, avoid attacks, and deliver precision hits that slowly wear the opponent out. This strategy was enough to defeat the legendary Pokemon Darkrai, which was used by Tobias, Ash's strongest rival.
2
Greninja
Of the plethora of water-type Pokémon Ash has caught on his travels, Greninja is objectively the best and most memorable. At first, this monster was a brave but inexperienced Froakie, who joined the hero soon after arriving in the Kalos region. Its training was difficult, as it had a deep desire to become a reliable partner for Ash, a goal that Greninja fulfilled.

Fan designs regional evolution for random starter Pokemon
A Pokemon fan shares impressive regional redesigns of three starter Pokemon from several generations of the game.
Not only has this amazing creature evolved into a fast and skilled fighter that uses its impressive attacks and speed to dominate its opponents, but it also became the first of its species to unlock a new form. Its deep bond with Ash transformed it into the massively popular Ash Greninja, one of the strongest Pokemon in the franchise. Thanks to this ability, the already powerful monster can easily reach the level of the most powerful legends, despite the conspiracy that forced X and Y to lose in the final battle of the era.
1
Pikachu
The Pokemon The anime has featured a large list of beloved characters over its two decades of airing, but none of them have become as iconic to the series as Ash's first and oldest friend: Pikachu. Once an unruly and arrogant creature that refused to listen to its trainer, this adorable monster grew into one of the most lovable and powerful Pokemon of all time.
Despite never evolving, Pikachu quickly became the only partner worthy of being Ash's strongest teammate. As it was a part of nearly every major battle its trainer took part in, the franchise's signature Pokémon grew to levels never seen before. Pikachu is capable of challenging the most powerful gods in the world of the series, and will have more than a fair chance of winning.