Let's see.
Lvl30, that would allow you to have 6 hard points in Holy Shock and 18 hard points in Resist Lightning, and one point in salvation.
Your Holy Shock would be 7.3 yards, Pulse 3-128 and add 1-768 to your attack.
Then add some +skills,
3 from the scepter alone would have it up to 1-1152 damage, and every +skill to Holy Shock would add a rough 150 damage. I guess you'll get skills from at least the amulet. Sojs might be a waste, you will need AR too.
And afaik, lvl30's don't increase their max res much, do they?
Anyway, let's say 1500 lightning damage. That's 250 after PvPpenalty -> 67.5 if 75%res.
Maybe could work, if you hit fast and hit often. And the pulse is funny to annoy casters and pop minions.