Blindsight

This specialized spell has granted you the knowledge of years of specialized combat training that allows you to perceive your surroundings in ways others couldn't begin imagine.

• You develop blindsight up to a range of 20 feet.
• Your blindsight can only work in a setting where your character can use his other senses, like hearing and smell.
• You gain advantage on Perception checks relying on hearing and scent.

For every level above 2nd the duration doubles, to a maximum of 4 hours.