Random Questions

[incognito]

I have a few questions about some equipment and spells.

1) Are the twin spears worth the time? They seem pretty inexpensive as far as artifacts go. 'Great deals' or better choices?

2) Is magebane a good weapon? I like the base stats, but wonder if the death effect could be bounced back at the wielder using the blood vengeance spell. Anyone tried this? Actually, I have the same question on other 'effect' weapons like the Aegis. How good is magebane anyhow? What is the most powerful creature you've seen in bring down in one hit?

3) For the Aegis, does the petrify work like the spell ie making the MR save still results in paralysis?

4) Are there any creatures that are immune to petrify? Statues seem like a safe bet...

Thanks,
John