Guild Wars 2

Any chance of there being a mastery to prevent projectile destruction from the terragrif trails?

Hmm I kinda doubt it. In its current function it acts as a pretty decent counter to ranged attackers. Probably the only mob I believe that has such atm. It adds a decent amount to the overall mordrem swarms survivability.

Block projectiles – fine.
Serve as additional target – not so.
Try binding blade with purpose to hit foes that are on your side of the trail and see what happens.