Genshin Impact Craftable Weapons Explained: How Forging Works and the Nod-Krai Set

Banners get the glory, but some of the most useful four-star weapons in Genshin Impact never appear on one. The forging system lets you build weapons directly: learn a diagram, hand a blacksmith a billet and a pile of ore, and walk away with a weapon that can be refined all the way to Rank 5 as you earn more billets. No wishes, no luck — just exploration and weekly bosses.

How Forging Works, Step by Step

1. Get the diagram. Each region's blacksmith sells its local set; other diagrams come from offering systems and quests. The diagram is a one-time purchase — learn it from your inventory.
2. Get a billet. Forging consumes one billet of the weapon's own type (sword billet for a sword, and so on). Billets come in regional families — Northlander, Midlander, Borderland — and drop mainly from weekly Trounce domain bosses, with extras tucked into offering-system rewards.
3. Bring ore. Regional sets ask for the region's crystal ore plus White Iron Chunks. Nod-Krai's recipes, for example, take 50 Rainbowdrop Crystal and 50 White Iron Chunks per weapon.

The Nod-Krai Craftable Set

Nod-Krai's diagrams are sold by Lyulka at the Rossum Workshop in Nasha Town — pick "I'd like to buy a weapon" — and each diagram costs 10 each of three local materials. The five weapons share a design language: modest base attack, a fat Energy Recharge or Mastery substat, and passives that pay you for triggering reactions, with doubled value while Moonsign: Ascendant Gleam is active.

Billets Are the Real Bottleneck

Diagrams are cheap and ore is everywhere, which means the forge's real currency is the billet. Weekly bosses drop them only sometimes, and each refinement eats another one, so a Rank 5 craftable is a project of weeks rather than an afternoon. Spend billets with intent: decide which character the weapon is for before you craft, not after, and resist owning one of everything — two refined weapons you use beat five Rank 1 weapons in storage. Earlier regional sets follow the same logic with different flavors, from Inazuma's energy-friendly designs to Sumeru's Mastery-leaning set, so a billet saved is a billet you can aim at the region whose weapons suit your roster best.

A practical word on value: craftables shine brightest at high refinement on the characters they were designed around, and the Nod-Krai set is honestly specialized — the Lantern and Shovel only make sense in Lunar reaction teams. But as guaranteed, F2P-friendly weapons with modern passives, they beat waiting for a banner to be generous. Forge with a plan, refine with patience, and let the gacha keep its Primogems.