Bellator

Bellator was a Time Lord.

At the Time Lord Academy, Kenossium was mentored by Bellator, whose lessons taught her how to survive "four-time campaigns and a Time War".

He went to a regeneration tower to select his next incarnation's form, but it went wrong and he was killed, alongside six other Time Lords who had died in the same way that very day.

(COMIC: The Clockwise War)