Pentagrams are a vital item that provides elemental damage and protection to your character.
There are two types: standard pentagrams (ranging from entry-level to unique).
Each pentagram can have from 1 to 5 slots for adding ertels.
When you create a character, you will receive a novice pentagram, which can be placed in a special slot.
You will need Elemental Damage and Defense for special bosses.