I'm not exactly sure how Temporary Hit Points work in Pathfinder but here's what the Talent states:
Once per day, a rogue with this ability can gain a number of temporary hit points equal to the rogue's level. Activating this ability is an immediate action that can only be performed when she is brought below 0 hit points. This ability can be used to prevent her from dying. These temporary hit points last for 1 minute. If the rogue's hit points drop below 0 due to the loss of these temporary hitpoints, she falls unconscious and is dying as normal."
I'm assuming that means that if I were hit by something for 10 points of damage and I'm only level 7, my hit points still fall below 0 to -3 and I'd still be unconscious. Or does it mean that, after the hit, I receive these hit points and they last until depleted or the 6 rounds have gone by?
Best Answer
Your 7th level rogue has 1HP. Rogue takes 10 points of damage (which brings her to -9HP). In response, the talent activates and gives 7tHP (bringing the total to -2). You are still unconscious, but you now have 6 rounds to have a buddy pour a healing potion down your throat, attempt first aid, or for you to stabilize normally.
Assuming instead that the damage is 5 points (instead of the 10 you use in your question), the pattern goes: 1HP, -5HP from attack (to -4). Resiliency kicks in giving 7tHP (bringing total to +3). Now the Rogue has the opportunity to withdraw, and drink the healing potion in her backpack. Or perhaps beg a heal spell from the Cleric.