Mythril Pliers

Taken all the way down to base materials, one Mythril Pliers is 3 crafting steps deep and needs 3 intermediates — Mythril Ingot ×2, Linseed Oil ×1 and Mythril Rivets ×1 — which resolve to 2 distinct raw materials totalling 8 units, plus 26 crystals.

That bill outweighs 5,254 of the 13,602 recipes tracked here and 529 of the 1,932 Blacksmith ones, and 337 recipes nest deeper.

Only 10 of those crystals go into the final step; the other 16 are burned by the intermediates, so the real crystal cost is 18 Fire Shard, 5 Earth Shard and 3 Water Shard.

The chain crosses two disciplines — Blacksmith to Lv 42 and Alchemist to Lv 29 — so no single class can finish it unaided.

Both raw materials are gathered, and no spot for either is timed, so nothing in the tree waits on the Eorzean clock.

Of the intermediates, Mythril Ingot has the widest use: 135 recipes call for it, spanning seven of the eight crafting classes.