On party composition:
1) Rogue with evasion 43 is hit almost each time, sometimes hit gets evade but its not worth it. Also to stack evasion you need to use shield (+10 evasion or more), which lowers dps (no dual wield for you).
2) Ice-Earth mage is close to useless. A lot of fights where you cant kite - like when mobs spawn behind you and ahead of you. Unless you kill one blocking the way out - you die. Only good skill is Icebolt. Chance to freeze around 30% with 5 water skill. Freeze does not work on bosses.
3) Barbarian with 50 protection is shreded to pieces in like 10 seconds if one zombie is attacking him. Probably not worth it to add Armor, since you only lose 25% prot (and "penalty" from armor is -evasion, not like barb would evade anything).
4) Charged skills are very good, probably Fighter bonus is better then Barbarian STR bonus?
5) Potions do help a lot, especialy potions like Speed potion.
1. Evasion 43 looks kinda low, not to mention that it's pointless to try making a tank out of non-tanky character. If you wanna rely on dodge as a protection measure, you need to go either knight (I now the passive doesn't work, but extra protection still helps) or fighter (fighter gives the access to the backbiter lifelink that really helps tanking) and you need to max out dodge skill pretty soon. And the character probably needs to be ratling with the mutate & +5 evasion trait. Not sure if that'll work that well, but 43 is too low of evasion anyways.
2. It's good against elementals and, well, ice spikes are pretty nice in those overcrowded fights - not a lot of damage individually, but it's spread all around.
3. Barbarian isn't really the tanky class - he's more of a damage dealer. Insectoid battlemage can gain that 50 protection at level 2, y'know.
4. Absolutely. Actually, barbarian bonus is pretty mediocre - +1 strength is just 0.5 damage, that's 7.5 damage at the level 15 - thank you, but I'll take convenient super-attacks any day over that. The only thing is, with the willpower being bugged, even fighter is pretty starved for energy.
It's about 1-3 herbs, usually the health and mana ones, but others sometimes appear.
Actually, it depends solely on which herbs your alchemist already has in his inventory. SO if you need specific herb, just move all other herbs to his teammates' inventories and watch your most needed ones multiply. Selective breeding does wonders for the rarer herbs.