what to do with soul coins bg3

Soul Coins in BG3 are best used on Karlach, since she can consume them to gain a temporary combat buff called Infernal Fury until the next long rest. They’re also rare enough that most players keep them rather than sell them.

What they do

Soul Coins are infernal items tied to the Nine Hells, and in Baldur’s Gate 3 they mainly serve as fuel for Karlach’s engine-like condition and for some infernal machinery. Community guides also note that they can be used as currency in infernal contexts, but that’s not something most players rely on in normal play.

Best use

• Give them to Karlach if she is in your party.

• Save them for fights where you want a temporary damage boost.

• Do not sell them early unless you are sure you won’t need the effect later.

Should you hoard them?

Usually, yes. They are limited, one-use items, and guides consistently warn that once they are spent or sold, they are gone for good.

Simple rule

If Karlach is with you, use Soul Coins on her when you expect a hard encounter; otherwise, keep them in storage until you decide whether the temporary buff is worth it.

TL;DR: Use Soul Coins on Karlach for the buff, and otherwise hold onto them because they’re rare.