Fanatic Greatsword 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
Fanatic Greatsword is a rank 9 Hillwen Engineering recipe with a best success rate of 95% at rank 1 and dan ranks.
Materials
Each craft uses
10× Hillwen Alloy
1× Apostle Ring — Drops from the Girgashiy monster raid fight.
2× Apostle Leather — Drops from Girgashiy raid encounters tied to the Apostle event.
3× Apostle's Sharpened Shard — Drops from the Girgashiy monster raid fight.
8× Apostle's Hardened Shard — Drops from the Girgashiy monster raid fight.
10× Apostle's Shining Shard — Drops from the Girgashiy monster raid fight.