Succubus Fiend Boots is crafted with Tailoring in Mabinogi (shoes). This page lists everything needed to make it, checked against the game as it exists today. The interactive planner lives in the Tailoring Companion.
How to get the sewing pattern
The sewing pattern is rank 1 and survives 30 uses; every crafting attempt spends one use.
Rabbie Advanced Dead End Chests: Run Rabbie Advanced and open the hallway dead-end chests for a chance at Succubus Fiend sewing patterns.. Enter with a Rabbie Advanced Fomor Pass at the Rabbie Dungeon altar.
Materials
Expect about 6 attempts per finished item (18% average progress per attempt). Per-attempt materials are consumed on every attempt; finishing materials once per item.