Risen Chameleos

Keep an eye on the attack that Risen Chameleos makes just before it vanishes. That motion shows where the monster will reappear. Breaking the horn keeps Risen Chameleos from vanishing fully. If you lose the trail, a Flash Bomb will reveal the monster. The poison fog is its breath, so bring Antidote. Continue attacking to stop the glowing Risen state, or knock the monster out, before it forms a huge poison mass and slams that mass with its tail for a massive blast.