Speed

Turbo Mode (sometimes called Turbo Boost) is a ability that has been bound to Speed's soul since the day he was born, which acts as a power boost that can be activated by will or with emotions.

It was originally made to kill Speed after giving him the power boost, but thanks to the healing factor, it became his short term power boost.

During said mode, Speed's eyes turn blue, his fur spikes and he radiates a constant electric aura, at the same time becoming violent towards his target, if Speed uses it alongside his healing factor, his pupils will shrink and his skin will retract, revealing large and sharp teeth.

This Boost instantly doubles his strength, power and speed, then keeps doubling it every 2 seconds, with the comfortable multiplier being 128x for 14 seconds, However, with Victini's help, the comfortable limit is 256x for 16 seconds. This growth is exponential, in simple terms, 2x > 4x > 8x > 16x > 32x > 64x > 128x (> 256x with Victini's help). If Speed needs to, he can force more boosts by himself, at the cost of his body.

Similar to the berserk virus, emotions can drastically affect the turbo mode's abilities, such as increasing the boost to 64x per second. Speedy can choose to enter a defensive mode where his defense increases instead of his strength and power, his speed still increases. Speedy can also use his healing factor alongside the turbo mode to last longer in the offensive mode, but this will corrupt his mind, turning him into a state even more similar to a Berserk Pokémon.

In the journals, it is revealed that the Turbo Boost is a "infinite source of power" that is bound to his soul and allows others to literally punch dimensional portals into existence while cracking invisible barriers and possess spiritual bodies, it is also fueled by countless souls across the multiverse. However, Speed hasn't mastered this power yet and thus cannot use even a metaphorical fraction of it, only having access to the boost described above.

This titanic amplification comes with a major drawback: his stamina falls too fast, which turns the 30 seconds into his personal limit. Once it ends, Speed is left completely weakened, ranging from lying on the ground to being knocked out, if he forces a longer duration, his body falls apart and he needs to regenerate or resurrect, besides the other drawbacks described above.

Speed cannot stop the multiplier outside of his confortable limit, and the boost will attempt to increase past it, forcing Speed to either turn it off or focus on staying at his limit.

Speed tends to be rash and serious sometimes, but when close to his friends he is calm, responsible, and mature. In certain occasions, he may be emotionally unstable. Speed seems to be socially oblivious and doesn't quite know how to talk to strangers, coming off as dense and stupid to many.

Pearls house!

Healing Factor

After evolving into a Jolteon and finding Jirachi, Speed wished for a healing factor (per Trace's suggestion), which automatically healed severe wounds like lost limbs and organs as long as his brain was intact.

After some time, he entered a tournament and wished the healing factor away to make it fair for the other fighters, allowing Trace to change the next healing factor to save Speed from anything besides age.

The current healing factor seems to heal him slowly but can be concentrated. Passively it heals wounds like fractured bones and minor brain damage, while actively it can heal entire lost limbs and organs in seconds.

The advantage of this version, however, is the fact that, in case Speed truly dies via decapitation, severe brain damage or massive bodily wounds, a new body will be made from nothing and sprout from the ground, completely rested and near biologically identical to his prime.

There are some extra changes that the healing factor seems provide, such as his skull becoming thicker after healing from the brain damage, being able to survive lethal damage without healing for variable periods of time, and having his DNA change every time he is resurrected

Reaction Ability

Speed has some unnamed ability that detects anything thrown at him and allows his body to dodge without him knowing or meaning to.

Trivia

Speed gets injured the most often, both comically and seriously. (Most of his injuries came from Lazuli, but serious ones came from Berserk Pokémon.) Since Speedy is very concerned about the house, he is forced to do a portion of the work. Speed is confirmed in the journals to be "Primus", the father of the Berserk virus. Despite being rusty, Speed is the strongest Eeveelution of the squad, even excluding his healing factor and Turbo Mode, physically matching a category 3 berserk. According to Pearl, Speed brought most of the stuff in their treehouse. Ironically, Speed feels pain normally to comedic wounds like when Lazuli hit him, but he has shown tolerance to the pain of major injuries like having his bones exposed or his arm ripped out. Speed's denseness seems to come from him being socially oblivious, but it is shown that his intellect is well developed in other cases, such as being called a genius in battling, technique and strategy by Trace, learning some engineering skill from Doctor Robert and hiding his identity from the rest of the squad, especially Black, for months. He also took care of his siblings by himself since the day he was born and could speak the instant he did so Speed's title "Yellow Flash" is a reference to the character Minato Namikaze from Naruto who was called the "Yellow Flash of the Leaf" for the same reason