What charms should i roll

[altima]

I want to find/roll GCs or SCs with max damage or other nice mods like 20 life , skill , all res etc. Is it possibe to get those mods on charms from pits , wsk , chaos , or should i reroll only the charms from baal/nihla ?

[Pugmh]

check this guide (http://diablo.incgamers.com/forums/showthread.php?t=403178). Here you can find what mods an item can have . I use it to reroll charms . First i find them, i use ATMA to see item lvl and check what i can have from rerolling...

[amne]

There's a good guide here: http://diablo.incgamers.com/forums/showthread.php?t=473052 . If you find it too long, here's an excerpt:
" Grand charms often rerolled using the 3pgem recipe. The grand charms are typically rerolled to gain the +skill tree prefix. Since that prefix occurs when grand charms have an ilvl of 50 or more one should make sure that the grand charm they are rerolling has an ilvl of 50 or more.

Small charms are rerolled for all kinds of prefixes and suffixes, +life, +resist, MF, whatever desired. One should check the prefix/suffix required ilvl and make sure the small charm is that ilvl or greater. On a further note the qlvl of small charms is 28 which by the equations above that in general ilvl has to be 14 greater then alvl desired."
You should check the affix levels here: http://diablo2.diablowiki.net/Category:Modifiers, and check ATMA for charms item level. IMO, the best and relatively easiest way to farm for high ilvl charms is Hell LK, on p7/p8. Besides good chances for rune drops, it gives you a lot of jewelry and charms as well, on a relatively safe map.
Here's a thread containing some of the finds, including charms and re-rolls: http://diablo.incgamers.com/forums/showthread.php?t=724327
Good luck!

[NASE]

If you want to reroll charms, just for the sake of rerolling - not looking for specific mods. Then you want to reroll diablo/baal or nihl grand charms as these can result in several hr. 45 life combat skiller anyone?

All other charms just don't bring in enough.

[edit]
Never mind, I should have read the topic first. amne has covered it all I guess.

[edit2]
with that said, I think it's better to reroll grand charms for skillers and use those to buy damage small charms.