- What to know
- Objective quick reference for “Successfully etch an essence 1 time”
- Essence types and the rarity requirement for etching
- How to prepare before attempting the first etch
- How to etch an essence one time (detailed steps)
- Guaranteed completion method using Coolant
- Common issues that prevent the objective from clearing
- Rewards from Successfully etch an essence mission
What to know
- Etching is only available for Flawless Essences (the highest rarity), typically farmed from Severe Energy Alluviums.
- Etching upgrades one chosen stat line at a time and consumes another Flawless Essence as the cost.
- Etching can fail, but failures do not harm the target Essence and award 10 Coolant.
- 120 Coolant can be used to force a guaranteed successful etch attempt (one upgrade).
In Arknights: Endfield, Etching is a weapon-progression mechanic that raises Essence stat levels so weapon passive/boost conditions are easier to meet. The objective “Successfully etch an essence 1 time” triggers as soon as a single etch attempt succeeds (either via normal success chance or by using enough Coolant to guarantee it).
Objective quick reference for “Successfully etch an essence 1 time”
| Item | What it means | Where it’s done | What counts as completion |
|---|---|---|---|
| Etch Essence | Upgrade one selected stat line on an Essence | Weapon Essence menu / Essence management screens | One successful stat level increase on a Flawless Essence |
| Essence cost | A second Flawless Essence is consumed per attempt | Etch screen (as the “feed/cost” Essence) | Required to initiate most etch attempts |
| Coolant | Currency gained on failed attempts | Auto-awarded on failure | Can guarantee success once 120 is collected |
Essence types and the rarity requirement for etching
Etching is restricted to Flawless Essences, which are listed as the 5-star Essence type in common rarity breakdowns. Lower rarities exist (Clean, Pure, Stable), but they are not the ones used for etching upgrades.
| Rarity | Essence type | Etching allowed |
|---|---|---|
| 5-star | Flawless | Yes |
| 4-star | Clean | No |
| 3-star | Pure | No |
| 2-star | Stable | No |
How to prepare before attempting the first etch
A successful etch requires a Flawless Essence to upgrade and another Flawless Essence to spend as the upgrade cost. Flawless Essences are obtained by clearing Severe Energy Alluviums (and spending Sanity there), which are designed as repeatable Essence farming spots.
| Preparation item | Why it matters | Quick check |
|---|---|---|
| At least 2 Flawless Essences | One is the target, one is the cost | Inventory has two gold/Flawless entries |
| A weapon with an equipped Essence slot | Etching is tied to weapon Essence optimization | Weapon menu shows Essence equipped or equipable |
| Optional: locked “keeper” Essences | Prevents accidentally consuming a valuable Essence | Lock preferred 3-line Flawless Essences |
How to etch an essence one time (detailed steps)
Step 1
Open the weapon menu and navigate to the Essence management/equip screen, or open the Essence section from storage where the Etch option is available.
Step 2
Select a Flawless Essence intended for upgrading (ideally one that matches the weapon’s passive lines for best long-term value).
Step 3
Choose the Etch option and pick which single stat line to upgrade (etching is done one stat at a time).
Step 4
Select a different Flawless Essence as the cost (this is consumed to attempt the upgrade).
Step 5
Confirm the etch attempt and check the displayed success rate, which can range from very high to low depending on how strong the upgrade is.
Step 6
If the attempt succeeds, the selected stat line gains a level, and the objective “Successfully etch an essence 1 time” should complete immediately.
Step 7
If the attempt fails, the target Essence is not harmed, the cost Essence is lost, and 10 Coolant is awarded; repeat attempts until one succeeds or until enough Coolant is collected.
Guaranteed completion method using Coolant
Failures award 10 Coolant each time, and Coolant can be used to guarantee a successful etching attempt once enough is collected. A commonly cited threshold is 120 Coolant for a guaranteed success attempt, which is a practical way to force the objective completion if random success is uncooperative.
| Coolant milestone | How it’s obtained | What it enables |
|---|---|---|
| 10 Coolant | One failed etch attempt | Progress toward guarantee |
| 120 Coolant | Multiple failures accumulated | A guaranteed successful etch attempt |
Common issues that prevent the objective from clearing
The most frequent blocker is attempting to etch a non-Flawless Essence, since the feature is limited to Flawless only. Another common issue is not having a second Flawless Essence available as the cost, which prevents an etch attempt from being performed.
| Problem | Likely cause | Fix |
|---|---|---|
| Etch option missing | Essence is not Flawless | Farm/obtain Flawless Essences and select one of those |
| Can’t confirm etch | No spare Flawless Essence to consume | Acquire at least one extra Flawless Essence as cost |
| Objective not completing | Attempts are failing | Continue attempts or use 120 Coolant to guarantee a success |
Rewards from Successfully etch an essence mission
| Reward | Quantity |
|---|---|
| Oroberyl | 1 |
| T-Creds | 1 |
| Advanced Progression Selection Crate I | 8 |
| OBJ Razorhorn | 1 |
We hope this guide brought clarity and saved you time. Your feedback means a lot, so feel free to comment with suggestions, ideas, or questions. We monitor the comments closely and try to respond quickly to anyone who needs assistance or further explanation.
