Reaper scarab from mass effect backed up by 100 geth primes [spoiler]for those who never played ME3, a geth prime is as tough as a 33 hallowed knight, has a hobgoblin rifle with 3x the firerate, had an insanely OP overshield which would regenerate the moment you stopped firing at it and could fire a barrage of missiles on par with those of rockets mcdickface[/spoiler]