Take the tour ×  It's my understanding that the projectiles from
Lightning Strike work with support gems like Lesser/Greater
Multiple Projectiles and Chain or Fork, but what about the Iron
Grip passive and other projectile speed and damage passives?
share|improve this question Hey, I think I saw you ask this in
general chat yesterday! –  SaintWacko Feb 7 at 14:22 add comment
2 Answers  The first line in the description fo every gem
contains some tags, i.e enter image description here  In this
example Glacial Hammer is Cold, Attack and Melee. That means
that any support gems with any of those same tags will add its
effect to it.  share|improve this answer That's useful
information to have, but it doesn't really answer the question.
–  Frank Feb 20 at 14:34 add comment  Iron grip works with any
physical damage done by projectile attacks. So yes it will
passively increase the damage done by Lightning Strike +
whatever support gem you are using, however it will only
increase the physical damage done. Damage pas