Talk:Incendiary Cloud/@comment-86.253.189.235-20200208223230/@comment-86.253.189.235-20200209010713

Well actually this Wiki has quite comprehensive information avaiblable already. The great spells are those you can find wherever there will be random loot of the category Wealthy treasure and, for the higher level spells, Rich treasure.

Wealthy treasures have a chance to be one of these scrolls, and Rich treasures one of these. (In both cases you want to look at the last row marked "Baldur's Gate II")