Book of Electrum

Taken all the way down to base materials, one Book of Electrum is 2 crafting steps deep and needs 4 intermediates — Electrum Ingot ×2, Cobalt Ingot ×1, Enchanted Electrum Ink ×1 and 1 other — which resolve to 7 distinct raw materials totalling 17 units, plus 33 crystals.

That bill outweighs 7,161 of the 13,602 recipes tracked here and 1,252 of the 1,591 Alchemist ones, and 4,464 recipes nest deeper.

Only 11 of those crystals go into the final step; the other 22 are burned by the intermediates, so the real crystal cost is 11 Water Shard, 10 Wind Shard, 7 Lightning Shard and 1 other kind.

The chain crosses four disciplines — Alchemist to Lv 45, Blacksmith to Lv 42, Goldsmith to Lv 42 and Weaver to Lv 38 — so no single class can finish it unaided.

5 of the 7 raw materials match a gathering node, none of them timed; the other 2 come from vendors, drops or content this site does not track.

Book of Electrum is itself consumed by 1 further recipe, all of them Alchemist recipes.