Mythril Sledgehammer

Taken all the way down to base materials, one Mythril Sledgehammer is 2 crafting steps deep and needs 3 intermediates — Horn Glue ×1, Mythril Ingot ×1 and Oak Lumber ×1 — which resolve to 3 distinct raw materials totalling 8 units, plus 19 crystals.

That bill outweighs 5,254 of the 13,602 recipes tracked here and 529 of the 1,932 Blacksmith ones, and 4,464 recipes nest deeper.

Only 9 of those crystals go into the final step; the other 10 are burned by the intermediates, so the real crystal cost is 9 Fire Shard, 4 Earth Shard, 3 Water Shard and 1 other kind.

The chain crosses three disciplines — Blacksmith to Lv 41, Carpenter to Lv 32 and Alchemist to Lv 30 — 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.