Charge toward foes, landing multiple blows with a higher critical rate that usual.
All in bullet time baby!
Piercer is a Technique for Prompto that targets with a firearm to hit multiple enemies in a line. It costs one tech bar to use and reduces enemy defense by inflicting Compromised. It can knock enemies into vulnerable status and is decent at destroying appendages. Piercer can be followed up with an attack from Noctis.