Plot Armor:

You can spend 1 XP to buy a point of Plot Armor. You can have multiple banked points of purchased Plot Armor. When something happens that would lead to your death (roasting in dragon fire, drowning, receiving a fatal swordstroke), spend a point of Plot Armor to instead have a single tick-worth of Body stress track remaining. If that doesn't suffice, then instead you can spend two points of Plot Armor to retcon a different outcome. Note: you cannot buy points of Plot Armor retroactively. You either have it when something bad occurs, or you're screwed. You may never have more points of Plot Armor than your Spirit attribute. Anytime you spend Plot Armor, roll 2d6: on Snake Eyes, your use of Plot Armor fails and all points of Plot Armor are depleted/gone.