FusionDex

Nidofing's fang is filled with an incredibly strong venom that can cause delirium. Should this fail, it spins rapidly so the gases in its body react with one another, causing it to explode.

Getting up close to a Nidofing will give you a chance to observe, through its thin skin, the toxic gases swirling inside. The male Nidoran has developed muscles that freely move its ears in any direction.