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 the Tower of Silent Memory to select his next and last incarnation's form, but it went wrong and he was killed, alongside six other unnamed Time Lords who had died in the same way that very day. (COMIC: The Clockwise War)