The pokemon i'm thinking of is an off color black, at a hue of #FFFF0E, it has large 3 inch, .45 diameter canid fangs protruding from it's body, and is roughly 300 inches tall, with a circumfrence of 360 degrees encompassing it's entire mass. it's eyes are solid white #00000 and take up 2.5 inches of it's face and are 1.3 inches tall versus wide. The pupils of the eye are also #FFFF0E in color and range at aproximately .60 of an inch in height, and .24 in width. The gas produces a color that is very close to #FF00EC
The creature itself weighs a total of .001 lbs, in metric being .000010 grams in customary systems. it's entire mass is equal to the volume output of it's own body, and contains no more then 0.6 kg of density, and is lighter then water.
The creature also produces a highly toxic gas cloud around it's #FFFF0E toned body, made up entirely of noxious chemicals, and Co2 two carbon atoms, one oxygen, Carbon dioxide, and CO1, carbon monoxide, It also consists of approximately 0.3 grams of potassium cyanide, as well as 0.9 grams of methane byproduct. roughly 6% of it's makeup is pure oxygen, while 52% of the composition is helium.