The Doctor's job is never finished.
Without witness, without reward, you'll never know when they'll show up to save the day.
But if you happen to be up against the Doctor, there's really only one thing you can do: "Run."
The Doctor is a Time Lord from the planet Gallifrey.
Time Lords literally experience time differently.
They can see past, present, and future all at once.
They can resist temporal phenomena such as time stops and can tamper with fixed points in time. They're effectively acausal beings.
This makes them super hard to predict and nearly impossible to erase from any timeline.
On several occasions various incarnations has fought, defeated, and outsmarted beings such as the Eternals and Guardians of Time.
The Doctor is so smart, his brain once powered a 1,000-year-old supercomputer.
Has outwitted cosmic entities like The Great Intelligence, the Time Lord Nemesis, The Master, and... appearantly the original Satan, who isn't even the most frightening alien in the multiverse, because that would be the Daleks!
The Eleventh Doctor spent 900 years battling Daleks, Cybermen, Sontarans, and more on Trenzalore (The Time of The Doctor).
Don't forget how quickly the Doctor can formulate, calculate, and initiate plans. Like when he dodged half a dozen rays and improvised thousand of calculations in his head to siphon the rays' energy into a teleporter, all in a manner of nanoseconds.
The Doctor has unmatched intelligence, and thousands of years of experience.
Is stated by the Doctor himself to have reflexes ten times faster than a human being.
Being able to disappear from the sight of others or avoid well-trained people.
Has dodged half a dozen disintegration rays while also improvising several thousand calculations in a matter of nanoseconds (The Witch's Familiar).
Grabbed an object moving at "super-infinite speeds" (Infinite).
Comparable to enhanced clones such as Jenny who dodges lasers (3.1%c).
Reacted in using the Mirror Aliment before the Gods of Ragnarok could destroy them.
Can outrun pursing Daleks while simultaneously avoiding their gunstick fire (COMIC: Liberation of the Daleks).
The Fourteenth Doctor and Fifteenth Doctor should team up in the Doctor Who future!
In "The Giggle", after the Toymaker was defeated by the Fourteenth and Fifteenth Doctors and the Toymaker vanished from existence, a hand with red painted nails took the golden tooth, someone's laugh was present at that moment.
So what does this mean?
It means the Master will return, so I hope to see a Multi-Doctor story to see two or three Doctors fight two or three Masters!
I hope to see Matt Smith in it, maybe Jodie Whittaker, also David Tennant, which I hope to see Both Tenth Doctor, Meta-Crisis Doctor and Fourteenth Doctor meet each other!
Maybe see the Eleventh Doctor, Thirteenth Doctor, Fourteenth Doctor and Fifteenth Doctor fight the Saxon Master (John Simm), Missy (Michelle Gomez) and Spy Master (Sacha Dhawan)!
I truly hope to see this really happen!
I want this to be mind-blowing! Just like Journey's End, The Day of the Doctor, and The Giggle was!
One last thing, I hope to see the Eighth Doctor, maybe in a Spin-Off Television Series!
When a Time Lord is dying - either due to old age or mortal injury - they are able to use a process called regeneration, gaining a new healthy body.
With this regeneration:
The Doctor has regrown lost limbs while his lost limb regenerated the entire missing body of the Doctor
Got a superhuman strength boost during regeneration to knock down a steel doors
Once used his regeneration energy to destroy a Dalek Saucer and damaged his TARDIS
Underwent a bi-generation, in which he was split into two versions; himself
If a Time Lord dies during regeneration, that ends the process permanently.
How you would know "The idea is that the Doctor being the Timeless Child is nothing but a lie"?
Where's Rose Tyler and the Meta-Crisis Tenth Doctor now?
In The Target Storybook, Rose give birth to her and the Doctor’s child name Mia.
In AUDIO: The Siege of Big Ben, the Doctor is growing a TARDIS in his UNIT lab.
In AUDIO: Flight Into Hull!, when his zeppelin was crashing, the Doctor cried, telling Jackie Tyler that he loved Rose unconditionally.
The Meta-Crisis Tenth Doctor is "born in battle, full of blood, anger and revenge", and Rose makes him better.
To know more about the parallel universe.
To see more of Rose and the Meta-Crisis Tenth Doctor.
To see how Rose/Meta-Crisis Tenth Doctor Spin-Off Television Series would be like, and look like!
The Meta-Crisis Tenth Doctor did indeed say "I love you" when he whispered in Rose's ear, I hope to see him say it not in Rose's ear tis time!
By contrast, COMIC: Empire of the Wolf has the Doctor explicitly mention that he and Rose do not have access to a TARDIS, though given the original deleted scene stated it would take time, it is possible he meant they simply lacked a TARDIS at that moment.
We all want to see more of the 8th Doctor!
We saw the 10th Doctor and 11th Doctor in The Sarah-Jane Adventures,
I hope to see maybe the 8th Doctor, 10th doctor, 11th Doctor in the Ace Spin-off Series!
I don't want David Tennant to go!
If anyone ask what would I'd love to see...
I'd love to see a spin-off for:
The Eighth Doctor
Ace
The Saxon Master
Rose/Meta-Crisis Tenth Doctor
Fourteenth Doctor ('Cause of what we've seen in "The Giggle")
UNIT
Torchwood
Sontarans, Weeping Angels and Sea Devils, along with Daleks and Cybermen!
Both of them!
Eighth Doctor (I hope to see)
Ace
The The Saxon Master
Rose/Meta-Crisis Tenth Doctor
Fourteenth Doctor ('Cause of what we've seen in "The Giggle")
UNIT
Torchwood (I hope to see again)
Sontarans, Weeping Angels and Sea Devils, along with Daleks and Cybermen
Shrugged off getting his hand sliced off before he grew back a new one (The Christmas Invasion).
He survived in his TARDIS that tanked a blast from Zeus, who is superior to Helius, who took out three black holes.
Survived X-ray radiation, which increased to over 5000% (Smith and Jones).
Tanked a solar flare (2.39 petatons of TNT) (Daleks in Manhattan).
Survived falling from the Vinvocci ship and through the Naismith (The End of Time).
Survived falling in Earth's upper atmosphere long enough to put on a spacesuit (371 Tons of TNT) (The Doctor, the Widow and the Wardrobe).
Resisted the time stop ability of Kronos and Lampreys (The Time Monster) (PROSE: Spiral Scratch).
Resisted the effects of the crack in time, which can erase people from time, reality, and memory (Cold Blood).
Can just turn magic off, since Time Lords can do that.
Withstood the Qurunx's destructive blast, which can destroy a planet (The Power of the Doctor).
Tank many hits from powerful electricity energy blasts that turned a human to nothingness.
Survived being in the White Void in The Lost Dimension.
Had his Regan energy taken away (The Sound of Drums).
Defeated the Celestial Toymaker, who is the hyper-dimensional, immortal being (The Giggle).
Defeated Sutekh the Destroyer, who is an Osiran, a race that is even stronger than the Time Lords.
Defeated Omega, who threatened the entire universe (The Three Doctors).
Fought against The Quantum Archangel, who is an 11th Dimensional Entity.
Can withstand and overpower a Cybermen, who are capable of stopping a small spaceship with one hand.
Beat Robin Hood in a fight (Robot of Sherwood).
The Doctor duels with the Master across the omniverse when The Glory amped both (COMIC: The Glorious Dead).
Fought a robotic version of himself made by the Daleks.
Fought and singlehandedly ended the Time War between the Dalek Empire and the Time Lords was fought "for the sake of all creation".
Killed many Chronovores: God-like transcendental beings who, individually, can consume entire universes.
Defeated the CyberKing (The Next Doctor).