Blood Seek (3.5e Maneuver)

''You're scared. Your heart is beating really fast. I know... I can see you.''

For 1 round you gain the ability to see heartbeats and blood lit up in bright neon orange, and can even see through solid matter. Your vision can detect any blood bearing creatures through up to 1 foot of stone, 1 inch of common metal, or up to 3 feet of wood or dirt. Thicker substances or a thin sheet of lead blocks the vision.

Because you can see vitals, you ignore up to 50% fortification and gain a +4 to confirm critical hits for the duration.