Lifebeat Sense

You can assess the approximate HP percentage of the target until the end of combat.  (The DM should enable health bars for the unit, or you can ask for an approximate percentage). In addition, the target is afflicted by Expose 1, reducing the target’s crit threshold by 1. (20 to crit becomes 19.) Expose is removed once the target is critically hit (regardless of if they defend or not)