User:MrThermomanPreacher/Sandbox/The Master's seventh incarnation

The death of the Master's seventh incarnation was acknowledged by, herself a product of , on her Spacebook profile. (PROSE: Girl Power!)

Nature
By their nature as a Time Lord, the Master was born with an initial life cycle of 13 lives, which the Eighth Doctor knew had all been used by the time of 's trial on Skaro. (TV: Doctor Who) Missy acknowledged that she had first died thirteen times before before taking over "some bloke's body". (PROSE: Girl Power!) In fact,, who claimed to be nearing the end of his "twelfth regeneration", had acquired "" in the Trakenite Tremas. (TV: The Keeper of Traken) Surviving his execution on Skaro as a Deathworm Morphant, took the body of Bruce, a human. (TV: Doctor Who)

claimed to Chang Lee that the Doctor had taken most of his regenerations whilst the Doctor told Grace Holloway that the Master was both "on his last life" and had "[ran] out of all his lives". In their ensuing confrontation, the Master claimed that it was because of the Doctor that he had "wasted all [his] lives". The Doctor challenged this, reminding Lee that the Master claimed that he had stolen those lives when the reality was that the Master sought the Doctor's remaining lives after having "used all his lives", noting that the Master himself had just admitted to wasting "all of them". (TV: Doctor Who) In any case, the bodily theft was followed by the Master's fourteenth death. (PROSE: Girl Power!)

Fate
Ultimately, the Master's seventh incarnation died and naturally regenerated into his eighth incarnation. (PROSE: Girl Power!)

Post-mortem
When the was stripped of his Trakenite body by the Time Lords, and after his plot to steal the Fifth Doctor's regenerations failed, he found himself confronting mental projections of all his past incarnations, and was able to steal a bit of life energy from each of them, allowing him to regenerate back into his Trakenite body. (PROSE: The Velvet Dark)

Invalid sources
The Doctor Who Role Playing Game by FASA, which admits to taking liberties with the source material in its opening pages, gives a rundown of the Master's first thirteen incarnations in "The Master" supplement book, which was similar to (but not entirely consistent with) the in-universe biography given for the Master in FASA's own CIA File Extracts.

According to the book, the Master could control the form of his incarnations, and frequently used the same face. In a constant, bearded aristocrat form, the Master worked as a researcher on Gallifrey until his fifth incarnation, aged over 700-years-old, attempted to lead a rebellion on Gallifrey, with the War Chief among his followers, which ended in failure with the Master himself being gravely wounded, forcing him to flee and regenerate. The now renegade Time Lord decided to completely abandon his familiar form with his sixth incarnation assuming a shorter, heavier and younger but still apparently middle-aged "average" appearance, wearing his brown hair short with bangs hanging straight across a high forehead above a broad face, with only his piercing eyes remaining much as before. Adopting the hooded robes worn by religious orders during Earth's 11th century, this incarnation became known as the Monk. He regenerated after an accident with the Monk's TARDIS freed him from Earth, his new incarnation being identical to the last. When the Master's activities as the Monk became known, he chose a new disguise when a crisis triggered his next regeneration, assuming in his next five incarnations.