Mine, flash

Mines can be set to detonate when a creature comes within up to 15 feet of it or paired with a remote detonator. As an action, you can prime and set a mine on a surface you can reach, which arms at the start of your next turn. When detonated, each creature within 15 feet of it must make a DC 14 Constitution saving throw. On a failed save, a creature is blinded for 1 minute. At the start of an affected creature's turn, it can repeat this save, ending the effect on a success.