Methuselah

Methuselah dwarfs Protos. That's about ALL Methuselah does, actually.

Methuselah, or Methusula, is an ancient dead world.

Fiction

3H comics

It was dead even billions of years ago when Primus chose its moon Protos as a prototype for the later Cybertron.

Billions of years later, Methuselah still hides Protos in its shadow.

The AllSpark Almanac

Methusula was a world located in Vok Territory orbited by Protos. The AllSpark Almanac II