Hold Breath (Talent)
Some people just breathe mindlessly. You actually practice it.
Ability Type: Ex
Prerequisites: Rogue 1
Benefit: A rogue with this talent who is holding their breath can do so for the first two rounds without the need to expend any actions. They must still be able to activate holding their breath, either by declaring they are doing so at the start of their turn (a free action) or by spending an immediate action (if it is not their turn when the effect comes to bear). Each consecutive round after the second requires the expenditure of actions as described in Holding your breath, beginning with a swift action in the third round, a move action in the fourth round, etc. The rogue may only voluntarily hold their breath a maximum number of rounds equal to their CON modifier +3 (minimum 4) before they are forced to take a breath or begin Asphyxiating.
In addition, the rogue can activate holding their breath even if they are surprised, or otherwise unaware of the effect that impacts their breathing, as long as they are able to perform either a free action during their turn, or an immediate action outside of their turn, to activate it.