Because it stores several kinds of toxic gases in its body, it is prone to exploding without warning.
Base Exp. 0
Height 0.6m
Weight 1kg
#109 - Koffing
Poison
Stats
HP 40 / 255
Attack 65 / 181
Defense 95 / 230
Sp. Atk. 60 / 173
Sp. Def. 45 / 230
Speed 35 / 200