Sunder charms worth using?

Hey people,
So i've been using sunder charms and honestly (apart from the Physical Sunder charm), the rest don't really seem all that effective. Was wondering if it's actually worthwhile using them. Currently using my Poison necro, just reached lvl75, been running around with it using

Poison Nova and honestly, i cant see any real difference. Should I reroll my Necro and invest in

Lower Resist instead? (Thinking that the Poison Sunder charm would do the trick, i kind of didn't bother using anything past

Amplify Damage.)

sunder charm lower the resist only to 95%, so you would need other equip to lower it further.

However - resistance will only have a success of 25% if the monster was immune before.

So 120 resistance( Immune)
Break it with sunder 95%
Say 20% from griffons (5% effective)

You have

Corpse Explosion so you don't really need a sunder.

Many other builds just play so much better using a sunder. A skill like Blizzard takes 100 points to max out. That does not leave much room for anything else, which is where a sunder comes in.

A sunder charm is not really enough by itself - if you have a sunder charm, you should always have a means of further reducing the monsters' resistances. A sunder charm breaks all immunities of a damage type, but it leaves them at 95% resistance, which means your attacks are doing 1/20 of the listed damage. So

Lower Resist is always a good idea anyway (1 pt can be enough with +skills from gear), but ideally you want gear with -res too, such as a

Death's Web.

• With a
  Death's Web, a sundered enemy's resistance would drop a further 40-50%.
• With
  Lower Resist, a sundered enemy's resistance would drop a further 10-15% (
  Lower Resist works at 1/5 effectiveness vs immune & sundered enemies)
• Having both means the sundered monsters' resistance ends up at 30-45%.

(there are other sources of -res than

Death's Web as well, of course)

Now, without a sunder charm, since

Lower Resist only works at 1/5 effectiveness while breaking an immunity (-res from gear doesn't kick in unless the immunity has first been broken by either a sunder charm or

Lower Resist), the highest immunity you can effectively break is 114% (that's with a level 15+

Lower Resist). Some poison immune monsters actually have more than that, but I haven't checked how common it is.

But like Liax says, as long as there are other monsters around (that aren't poison immune) that you can kill, you can kill poison immunes with

Corpse Explosion. Someone with more experience with poison necros would have to provide some feedback if that actually works well enough in practice (I have too little experience with the build to have a feel for it).

phreak208 wrote: 2 hours ago

Say 20% from griffons (5% effective)

-res from gear isn't subject to the 1/5 penalty - it always works at full effect if the immunity has been broken in any way

Ah thanks for clearing that out ShadowHeart.
Appreciate that information, I can tweak some builds then^^

Ahh.... so not as effective as the description says it is. Looks like i'll have to reset my skills and include lower resistance as part of my initial attacks. And unfortunately i've yet to find a

Death's Web. Currently running around with

Blackbog's Sharp

Dagger. Cheers for the feedback guys. Muchly appreciated.