Metal Trident

Taken all the way down to base materials, one Metal Trident is 2 crafting steps deep and needs 2 intermediates — Bluespirit Tile ×2 and White Ash Lumber ×2 — which resolve to 3 distinct raw materials totalling 18 units, plus 32 crystals.

That bill outweighs 7,380 of the 13,602 recipes tracked here and 694 of the 1,441 Armorer ones, and 4,464 recipes nest deeper.

Only 4 of those crystals go into the final step; the other 28 are burned by the intermediates, so the real crystal cost is 14 Fire Crystal, 14 Wind Crystal, 2 Earth Crystal and 1 other kind.

The chain crosses three disciplines — Armorer to Lv 75, Blacksmith to Lv 74 and Carpenter to Lv 74 — so no single class can finish it unaided.

All 3 raw materials are gathered, and not one of their spots is timed, so nothing in the tree waits on the Eorzean clock.

Of the intermediates, Bluespirit Tile has the widest use: 72 recipes call for it, spanning six of the eight crafting classes.