Mythril Broadsword

Taken all the way down to base materials, one Mythril Broadsword is 2 crafting steps deep and needs 2 intermediates — Mythril Ingot ×1 and Oak Lumber ×1 — which resolve to 3 distinct raw materials totalling 7 units, plus 15 crystals.

That bill outweighs 4,963 of the 13,602 recipes tracked here and 507 of the 1,932 Blacksmith ones, and 4,464 recipes nest deeper.

Only 8 of those crystals go into the final step; the other 7 are burned by the intermediates, so the real crystal cost is 8 Fire Shard, 4 Earth Shard and 3 Wind Shard.

The chain crosses two disciplines — Blacksmith to Lv 38 and Carpenter to Lv 32 — 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, Mythril Ingot has the widest use: 135 recipes call for it, spanning seven of the eight crafting classes.