Board Thread:Warhammer 40k General Discussion/@comment-11526152-20130926081538/@comment-4851119-20131110155715

Ordinatus Mars obviously, Ordinatii can one-shot Titans. Plus they're so damn big (Ordinatus Armageddon, comparable in size to Mars, mounted a Nova Cannon) that a whole phalanx of Monoliths would struggle to damage it. I doubt it could tank a Transcendent C'tan, but it could probably kill one before it got close anyway.