Poison Breath(毒ブレス, Doku Buresu?), also known as Poisonbreath and Venom Breath, is a recurring enemy ability in the series. It is often a powerful Poison-elemental attack that targets the entire party and inflicts the Poison status. In Final Fantasy XI, it is also a Blue Magic spell. Poison Breath generally deals much more damage than Poison Gas.
Poison Breath is a Blue Magic spell learned from Hounds. It is a water-element breath attack spell that may also inflict poison. It costs 1 Blue Magic Point to set, and grants MND+1 when set.
The formula for this spell appears to be (Current HP)/10 + (Blue Mage level)/1.25. For example, at level 22 and 400 HP, damage is approximately 57 with no other bonuses applied.
Blue Mages can set Poison Breath along with one of the following spells to create the Clear Mind combo.