Upon impact, the PBFG's projectile encapsulates enemies in energy spheres and deals maximum damage in a huge radius. Any enemy strong enough to survive the initial blast will suffer continuous normal damage-over-time in addition to the PBFG's elemental status effect. This makes it most effective against big groups of enemies and can be especially useful to get a Second Wind in tight situations. Due to its unique normal damage-over-time, it is also useful for harming enemies that have a resistance to the gun's element.
Shots fired from the PBFG deal damage through walls and buildings.
Individual energy orbs are affected by Amp shields, as well as the initial projectile.
While the damage over time is normal damage, damage over time from a Slag PBFG is not doubled when the target is slagged. Due to this a Slag PBFG is less useful than a PBFG of another element coupled with a slag grenade.