While researching an answer to this question I asked, I came across the hero Raven, who has precognition (I was hoping her character info might shed light on my postcog dilemma). While reading about her I took note of the Trance advantage which states:
Through breathing and bodily control, you can slip into a deep trance. This takes a minute of uninterrupted meditation and a DC 15 Awareness check. While in the trance you add your Awareness rank to your Stamina rank to determine how long you can hold your breath and you use the higher of your Fortitude or Will defenses for resistance checks against suffocation (see Suffocation, page 170). Poison and disease effects are suspended for the duration of the trance. It requires a Perception check with a DC equal to your Awareness check result to determine you’re not dead because your bodily functions are so slow. You are aware of your surroundings while in trance and can come out of it at any time at will. You cannot take any actions while in the trance, but your GM may allow mental communication while in a trance.
1) Do you suffocate while tranced or use it to avoid other instances of suffocating?
2) What else does it do other than suspend disease and poison?? (other than "playing possum") ie When would you use trance when you are not poisoned or diseased?
It just seems that there are easier ways to avoid poison and diseases than going into a trance (obviously not accounting for the Role play reasons you might want Trance). And I am wondering if this is more for character flavor than any real mechanical advantage as it's not the most optimal way to avoid poison and disease. You basically put yourself into a coma, making you an easy target. Taking immunity to poison and disease would allow you to be active while avoiding those 2 conditions. So while I dont expect there to be any other uses of Trance, I am just trying to learn as much as I can about the advantage and its possible uses.