Pulsating Shyllien is crafted with Magic Craft in Mabinogi. This page lists everything needed to make it, checked against the game as it exists today. The interactive planner lives in the Magic Craft Companion.
Recipe availability
Pulsating Shyllien is a rank 8 Magic Craft recipe with a best success rate of 98% at rank 1 and dan ranks.
Materials
Each craft uses
10× Fluffpuff Mushroom — Gift White Truffles to the Clover Pig under the tree in Mag Mell, 11am to 1pm.
5× Stained Shyllien Crystal — Ecology at District 2 Large A/B (23% of pulls) or reserve mob drops. No shop source
20× Sunlight Herb — Gather it with Herbalism from herb patches near most dungeons.
5× Pure White Dust — end-chest reward from low-difficulty Uladh dungeons (Alby/Ciar/Barri Basic, etc.)