Genshin Artifact Strongbox: How to Use Mystic Offering

The Genshin Artifact Strongbox is a trade you make at any crafting bench: the Mystic Offering tab takes three five-star artifacts you don't want and gives back one strongbox of a set you pick. Opening it gives one random five-star piece of that set. It costs no resin, which makes it the best second life for five-star pieces that rolled badly.

What the Artifact Strongbox is and when it unlocks

Mystic Offering unlocks at Adventure Rank 45, about the time five-star artifacts start to pile up in your bag. There is no quest for it. From that rank on, the crafting bench in any city shows a Mystic Offering tab next to the normal crafting list.

The rules are short:

• Only five-star artifacts are accepted.
• Three artifacts go in, one Artifact Strongbox comes out.
• You choose the set. You do not choose the piece: the slot, the main stat and the sub-stats are rolled at random, exactly like a domain drop.
• What you give has no effect on what you get. Three bad flowers do not produce a flower.

Not every set is on offer. The list at the bench grows as the game gets older: sets from older domains are added over time, while the newest ones are usually missing. Open the tab and look before you plan around a set.

How to use the Artifact Strongbox step by step

1. Go to a crafting bench in any city and interact with it.
2. Switch to the Mystic Offering tab.
3. Pick the artifact set you want from the list.
4. Add three five-star artifacts for each strongbox you want to make. Locked and equipped pieces can't be offered, so unlock a piece first if you really mean to give it up.
5. Confirm the offering. The strongbox goes to your inventory.
6. Open the strongbox from the inventory to receive one five-star artifact of that set.

Look at the three pieces once more before you confirm. An offering can't be undone, and a good goblet lost this way does not come back.

Which sets are worth choosing

Three artifacts for one is a slow rate, so the choice of set matters more than anything else. Three kinds of set make good use of it.

Sets that have no domain. Gladiator's Finale and Wanderer's Troupe drop from bosses, not from an artifact domain, so you can't farm them on purpose with resin. When the bench offers them, the strongbox is the only way to aim at them.

Sets stuck with a partner you don't need. Every artifact domain drops two sets, so about half of your resin there goes to the other one. Viridescent Venerer, the support set for Anemo characters, shares its domain with a healer set that few teams ask for. That is the typical strongbox pick. Spend your resin in a domain where both sets help your characters, then turn the rejects into the set whose own domain would waste half your runs.

Sets that several of your characters wear. When three characters can use the same set, far fewer random pieces go to waste: the sands that is wrong for one is right for another.

The opposite also holds. A set for a character you rarely play, or a set you can already farm in a domain you like, is a poor use of your spare pieces.

What to feed it and what to keep

Good material for Mystic Offering:

• A sands, goblet or circlet whose main stat no character on your account wants.
• Flowers and plumes whose sub-stats are mostly flat numbers, with no crit and no stat your characters build.
• Five-star pieces of sets you will never use, unless the piece itself is strong.

Pieces to keep out of it:

• An elemental damage goblet with decent sub-stats, whatever its set. Most builds wear four pieces of one set plus one piece from outside it, and that outside piece is very often the goblet.
• Artifacts you have already leveled. Use those as enhancement material instead, where most of their experience passes to the new piece. The strongbox gives nothing back for levels.

There is one trade-off to remember. Every five-star piece you offer is also artifact experience you no longer have. If your main characters still wear low-level pieces, level those first and feed the strongbox with what is left.

If you are not sure which stats make a piece worth keeping, read artifact main stats and sub-stats explained before you clear your bag.

Mistakes that waste good artifacts

• Emptying the whole bag at once. Keep some fodder for the next piece you want to level.
• Choosing a set because a ranking calls it strong, not because someone on your team wears it.
• Expecting better luck than in a domain. The rolls are the same. The only advantages are that you choose the set and pay no resin.
• Offering unlocked pieces without reading them. Lock everything you might use as soon as it drops, and the strongbox can never take it by accident.

Frequent questions

How do I unlock the Artifact Strongbox?

Reach Adventure Rank 45 and open a crafting bench. Mystic Offering appears there as a tab, with no quest to finish first.

Is the Artifact Strongbox worth it?

Yes, as long as you only give it pieces you would never equip. It turns dead five-star artifacts into new chances at a set you chose, at no resin cost. It is too slow to replace domains, so treat it as the second step after them.

Can I choose the main stat or the piece I get?

No. You choose the set and nothing else. The piece can be any of the five slots, with any main stat that slot allows.

How do I get better artifacts faster?

Farm the domain that helps the most characters, judge each piece by its main stat first, and level only the ones that start with useful sub-stats. Everything else becomes fodder or strongbox material. For damage dealers, the crit rate and crit damage balance tells you which sub-stats to look for.

Artifacts are earned, Genesis Crystals are for the rest

No shop sells artifacts. Domains, bosses and the strongbox are the only ways to get them, which is why spare five-star pieces are worth managing well. What you can buy are Genesis Crystals, which convert into Primogems for wishes when a character you want arrives.

If you top up, you can get Genshin Impact Genesis Crystals on Mas4Games, loaded by UID and server. The store asks only for your UID and server, never for a password, and its help center has live support if an order needs a hand.