You highlight the path of your projectile with light, allowing your allies to better spot the target.
Benefit(s): As a standard action, you can make a single ranged attack at your highest base attack bonus with an illuminated throwing weapon or piece of ammunition, such as a flaming shuriken or an arrow imbued with a magical light effect. If the attack hits its target, attacks against the same target gain a +2 circumstance bonus for 1 round, so long as those attacks originate in dim light or darker areas. The target counts as being in bright light until the projectile is removed or extinguished. Removing the projectile is a move action that provokes an attack of opportunity.
Pathfinder Player Companion: Heroes of the Darklands © 2017, Paizo Inc.; Authors: Robert Brookes, Eleanor Ferron, Michelle Jones, Alex Riggs, and Nicholas Wasko.