Elden Ring: Shadow of the Erdtree - How To Complete The Thiollier Questline (Walkthrough)
You will meet Thiollier as you progress the main story of, and completing his sidequest can bring some valuable rewards. The master of poison is a powerful ally and an interesting NPC who you will encounter a few times as you play. Each time you see him, you will learn something new about your fellow Tarnished on your journey towards finding Kindly Miquella.