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 — High Durium Ingot ×3 — which resolves to 3 distinct raw materials totalling 20 units, plus 30 crystals.

That bill outweighs 7,876 of the 13,602 recipes tracked here and 757 of the 1,441 Armorer 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 Fire Crystal, 3 Earth Cluster and 3 Ice Cluster.

The chain crosses two disciplines — Armorer to Lv 90 and Blacksmith to Lv 82 — so no single class can finish it unaided.

2 of the 3 raw materials match a gathering node, none of them timed; the other 1 comes from vendors, drops or content this site does not track.

Of the intermediates, High Durium Ingot has the widest use: 41 recipes call for it, spanning six of the eight crafting classes.