Sampo has a tall 10 foot tall, 20 foot long naga, muscular built, with tufted dark blue hair, at the back, it is shown that the underneath part of his hair is much lighter. Mint green eyes with cat-alike pupils, and fair skin, he wears some sliver piece earring on left ear, also he has sharp features. From the waist down is an indigo-purple viper tail with a sheen that looks like an oily mix that faded from magenta to mint green to blue. Sampo has fangs and two types of venom.