Only druid characters can challenge for the Druid Grove (i.e. Cernd, Jaheira or a druid PC) and only the main character can get it as his/her stronghold after that.
To remove the XP cap, download the XPcap Remover from
TeamBG and follow the instructions.
Good luck!!
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Melusine, High Queen of Fluffies, Archbabe of the Order of the Holy Flame and the Laughing Hyenas, &
Official Entertainer Elf of the BG2 Bar
Your voice is ambrosia