Fern Interior Wall

Taken all the way down to base materials, one Fern Interior Wall is 3 crafting steps deep and needs 3 intermediates — Growth Formula Kappa ×4, Mortar ×4 and Distilled Water ×4 — which resolve to 8 distinct raw materials totalling 46 units, plus 52 crystals.

That bill outweighs 12,540 of the 13,602 recipes tracked here and 1,508 of the 1,591 Alchemist ones, and 337 recipes nest deeper.

Only 16 of those crystals go into the final step; the other 36 are burned by the intermediates, so the real crystal cost is 36 Water Crystal, 8 Lightning Crystal and 8 Water Shard.

Every step is Alchemist work, from a Lv 1 intermediate up to the Lv 90 finish, so one class covers the whole chain.

6 of the 8 raw materials match a gathering node, none of them timed; the other 2 come from vendors, drops or content this site does not track.

Of the intermediates, Mortar has the widest use: 140 recipes call for it, spanning six of the eight crafting classes.