Omega from Doctor Who. None of Thanos' movie feats are enough to actually stop Omega, and Omega should be able to mentally wreck Thanos or just wear him down if Thanos can even get into Omega's universe.
He could fire FTL beams of Anti-matter from his universe to anywhere in the normal Doctor Who universe, was able to drain enough energy from the entire universe at once that the fabric of space/time was breaking down, and literally is will alone, held together by sheer determination.
Log in to comment