Does Shockbolts lower the target's resistances?

Question

I'm confused about the skill "Staff Mastery" in Torchlight 2. I'm pretty sure I'm right, but let me just get this straight:

If I use Shockbolts, (in addition to the other skills),

• Does lower the target's resistances?
• Does it also lower them if I hit the target with my staff?

Also,

• Am I required to wield a staff for this to have effect?

Answer 1

If you have the skill Staff Mastery, you can lower the elemental armor of any enemy by hitting them with:

• Your staff
• Magma Spear
• Magma Mace
• Icy Blast
• Shockbolts

The passive skill Staff Mastery ONLY works when you have a staff equipped. This is a cumulative effect and I believe does not go below 100% reduction.