Island Prism ★★

Taken all the way down to base materials, a batch of 3 Island Prism is 2 crafting steps deep and needs 1 intermediate — Almasty Serge ×3 — which resolves to 2 distinct raw materials totalling 14 units, plus 30 crystals.

That bill outweighs 6,557 of the 13,602 recipes tracked here and 823 of the 1,968 Weaver ones, and 4,464 recipes nest deeper.

Only 6 of those crystals go into the final step; the other 24 are burned by the intermediates, so the real crystal cost is 24 Lightning Crystal, 3 Lightning Cluster and 3 Wind Cluster.

Every step is Weaver work, from a Lv 82 intermediate up to the Lv 90 finish, so one class covers the whole chain.

None of the 2 raw materials do not appear in the gathering data, so the whole bill comes from vendors, drops or content this site does not track.

Of the intermediates, Almasty Serge has the widest use: 71 recipes call for it, spanning six of the eight crafting classes.