Feats

Diver [general]

Prerequisite: Con 13
Benefit: You can hold your breath for a number of rounds equal to four times your Constitution score before you risk drowning.
Normal: Without this feat, you can only hold your breath for a number of rounds equal to twice your Constitution score before you risk drowning.
Special: Creatures (such as Lizardfolk) that can normally hold thier breath for longer than normal who take this feat can hold their breath for an additional two times their constitution score rounds. For examble, a Lizardfolk diver with a Con of 14 can hold it's breath for 6 * 14 = 84 rounds (or 8:24) before it risks drowning.