Poison Puff

From the Super Mario Wiki

Paper Mario: The Thousand-Year Door Enemy
Poison Puff

Max HP	15
Attack	8
Defense	0
Location(s)	Pit of 100 Trials (Levels 91-99)
Log	A poisonous cloud creature. It'll charge you or try to poison you, and if you touch it while it's storing poison, you'll get hurt.
Items	None
Moves	Tackle (8), Poison Charge (causes Poison Puff to be immune to direct attacks, they will do 1 counter damage), Poison Attack (10 to Mario and Partner, Poison)
Tattle	That's a Poison Puff. Basically just a puff of poisonous air. Max HP is 15, Attack is 8 and Defense is 0. Its poison-gas attack is 10! These things charge you, but they also save up toxins and poison you with them. Scum! Plus, you can't touch them when they're saving up toxins or you'll get hurt. Lame!
Bestiary 69 70 71

Poison Puffs are a sub-species of Ruff Puffs and are also the strongest. Poison Puffs are green in color and are only in Paper Mario: The Thousand-Year Door. They can charge up for a powerful poison breath attack which can Poison Mario and his partner, also while charging for this attack Poison Puffs cannot be attacked directly. Poison Puffs are only found in Pit of 100 Trials.