Ultimate Geas Edge Circlet is crafted with Hillwen Engineering in Mabinogi. This page lists everything needed to make it, checked against the game as it exists today. The interactive planner lives in the Hillwen Companion.
Recipe availability
Ultimate Geas Edge Circlet is a rank 3 Hillwen Engineering recipe with a best success rate of 96% at rank 1 and dan ranks.
Materials
Each craft uses
1× Geas Edge Circlet
25× Mysterious Shard — Seven Nightmares raid drop
40× Geas Core — Drops from Feth Fiada, Revived Illusion, or Seven Nightmares Tech Duinn missions.