they re not worth it as it is. I've been stuck at darkness 40 for awhile; finally did it with the ranger after a few tree resets. nixi skadi the ranger and even avoron all rely varyingly on strikes no one uses summons. avoron is max armor and kront is max life/regen and both use powers, skadi needs a +1 cast/ +1 strike belt or something. i put -60 enemy damage items on nixi.
+life items are worth less but usually better. maybe im playing this too much and the final product will change everything with better summon items and +evade+life items