I haven't gotten around to visiting her at night this go around yet, but I know before you could get blue and green essence from the witch at night.
Yes, but that can easily get expensive.
Razit's Spear is actually effective against jellies. It does take a while to get it (you need to save Roushk and can get it by talking to him at the temple) but you can also use explosives in the meantime if you are barely starting.
