KateXKannibal
Second: The Master seems to not have a Tardis. It is not mentioned that he has one, and he steals the Doctor's instead of using his own. Why is this? Was it destroyed in the war? Did he just never have one?
Over the years the Master has had many TARDISes; he goes through them like he does regenerations. They've appeared across media, although less in the show than in the novels. There are various possibilities:
1) The Master's TARDIS was confiscated by the Time Lords before the Time War.
2) The Master's TARDIS was destroyed by the Daleks.
3) The Master never got a new TARDIS after he was placed inside the Matrix.
4) The Master's TARDIS still exists somewhere at the end of the universe and was used to transport him there by the High Council.