Thirteen Primes

Krypto lunged viciously, just as he had countless times before at employees foolish enough to tease him like an ordinary dumb dog. Lord Krypto bit down again. His tail stood high, revealing his prideful nature. His powerful canine legs bulged with veins and muscles, flaunting his formidable limbs. He had every right to show off—many Super Soldiers had tried to tease him and paid dearly for it. To this day, no one had discovered the upper limit of that little white dog's strength.