certainly doesn't have a shortage of items the party can find during their journey, especially if they meticulously dig through every area and open all storage containers. It's not unusual to pick up items that don't seem to have a use besides selling them to a vendor, but even items that are pieces of a puzzle or a quest later in the game aren't always obvious at first glance. However, part of the fun of a game based on 5e is exploring and discovering how the choices a player makes affect situations later.
The Ancient Tome, or Necromancy of Thay, is found during the «Search the Cellar» side quest in the Blighted Village in Act 1. Since it's locked, players aren't able to open it right after picking it up, and they might not want to open it at all. This book is one of many decisions players will make with consequences that aren't immediately clear, like deciding whether to help Auntie Ethel in . There are four primary uses for the Ancient Tome: give it to Astarion, let Gale suck out its magic, destroy it, or read it.
The biggest reason the book should not be destroyed is that destroying the Ancient Tome spawns a set of shadow enemies that are pretty tough to kill, and it they don't have any noteworthy drops that come with them. Plus, physical attacks are weaker against these creatures, so the melee members of the party will likely have a rough time in the fight. Overall, this seems like the worst option for the Ancient Tome in since the other options at least give some sort of benefit, even if it's just increased approval.
Giving the tome to Astarion or Gale results in an approval increase, which will be useful for those eyeing Gale or Astarion to romance in .The biggest benefits come from reading the Ancient Tome, however, which gives characters Speak with Dead as a free spell and a +1 to Wisdom Saves. This process requires the character to pass a series of Wisdom saving throws. The first is a DC 10, the second is a DC 15, and the third is a DC 20 to finish
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