Rarefied Mythril Alembic

Taken all the way down to base materials, one Rarefied Mythril Alembic is 2 crafting steps deep and needs 3 intermediates — Dwarven Mythril Ingot ×2, Dwarven Mythril Nugget ×1 and Sea Swallow Leather ×1 — which resolve to 6 distinct raw materials totalling 20 units, plus 42 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 14 of those crystals go into the final step; the other 28 are burned by the intermediates, so the real crystal cost is 14 Earth Crystal, 14 Fire Crystal, 7 Ice Crystal and 1 other kind.

The chain crosses four disciplines — Armorer to Lv 80, Blacksmith to Lv 78, Goldsmith to Lv 78 and Leatherworker to Lv 78 — so no single class can finish it unaided.

5 of the 6 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, Dwarven Mythril Ingot has the widest use: 168 recipes call for it, spanning seven of the eight crafting classes.