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Recipe
EngineeringShadowlands Engineering
Precision Lifeforce Inverter
Reagent cost, the crafted item's lowest listed price and the estimated profit at that price, from current US Auction House listings - recalculated every snapshot.
Crafting estimate at current listings
- Reagent cost (lowest listed)
- 95 gold36 silver
- Crafted item, lowest listed price
- …
- Auction House cut (5%)
- …
- Estimated profit at that listed price
- …
- Not included: the recipe also accepts 1 optional reagent slot, which are not required and are left out of the cost.
Recipe facts
- Profession
- Engineering
- Requires skill
- 1
- Expansion tier
- Shadowlands Engineering
- Item level
- 100
- Reagent slots
- 4
- Cast time
- 3 sec
Crafts
Reagents
4Laestrite Ore1 gold12 silver
1Mortal Coiled Spring5 gold
4Handful of Laestrite Bolts1 gold47 silver
8Twilight Bark10 gold
Cost per reagent
| Reagent | Qty | Each | Cost | Share |
|---|---|---|---|---|
| Laestrite Ore Metal & Stone · 18,484 on the Auction House | 4 | 1 gold12 silver | 4 gold48 silver | 5% |
| Mortal Coiled Spring Parts · 6,493 on the Auction House · crafted by Mortal Coiled Spring (Engineering) | 1 | 5 gold | 5 gold | 5% |
| Handful of Laestrite Bolts Parts · 65,286 on the Auction House · crafted by Handful of Laestrite Bolts (Engineering) | 4 | 1 gold47 silver | 5 gold88 silver | 6% |
| Twilight Bark Other · 1,531 on the Auction House | 8 | 10 gold | 80 gold | 84% |
| Total per craft | 95 gold36 silver | 100% |
About Precision Lifeforce Inverter
One craft takes 4 Laestrite Ore, 1 Mortal Coiled Spring, 4 Handful of Laestrite Bolts and 8 Twilight Bark.
- Recipe category
- Weapons (Shadowlands Engineering)
- Skill-up colours (Shadowlands Engineering skill)
- Orange below 40 · Yellow 40 to 44 · Green 45 to 49 · Grey 50 and up
- Skill points per craft
- 2
Precision Lifeforce Inverter tooltip
Where the reagents come from
Laestrite Ore. No recipe, Blizzard quest reward or dungeon journal drop in our game data produces it. Also a required reagent in 53 other recipes (36 Blacksmithing, 10 Jewelcrafting, 5 Engineering and 1 Tailoring); Crafter's Mark of the Chained Isle takes the most, 50 per craft.
Mortal Coiled Spring. Made with Mortal Coiled Spring (Engineering, Shadowlands Engineering) from 3 
Porous Polishing Abrasive, 5 Laestrite Ore and 2 
Luminous Flux. Also a required reagent in 12 other recipes (12 Engineering); the most per craft: PHA7-YNX (Engineering, 20 per craft), Momentum Redistributor Boots (Engineering, 10 per craft), Wormhole Generator: Shadowlands (Engineering, 7 per craft), Cartel Xy Capture Crate (Engineering, 6 per craft) and 50UL-TR4P (Engineering, 5 per craft).
Handful of Laestrite Bolts. Made with Handful of Laestrite Bolts (Engineering, Shadowlands Engineering) from 1 Laestrite Ore. Also a required reagent in 27 other recipes (27 Engineering); the most per craft: Crafter's Mark of the Chained Isle (Engineering, 30 per craft), PHA7-YNX (Engineering, 25 per craft), Crafter's Mark of the First Ones (Engineering, 20 per craft), Gravimetric Scrambler Cannon (Engineering, 20 per craft) and Momentum Redistributor Boots (Engineering, 20 per craft).
Twilight Bark. No recipe, Blizzard quest reward or dungeon journal drop in our game data produces it. Also a required reagent in 13 other recipes (5 Inscription, 2 Enchanting, 2 Cooking and 1 Leatherworking); the most per craft: Ardenweald Lamppost (Enchanting, 6 per craft), Ardenweald Hanging Baskets (Inscription, 5 per craft), Hollow Night Fae Shrine (Inscription, 4 per craft), Soul Keeper's Column (Inscription, 3 per craft) and Soul Keeper's Spire (Inscription, 3 per craft).
More Shadowlands Engineering recipes in the same skill range
- 50UL-TR4PDevices, learn at 1, grey at 65
- Articulated Ectoplasmic SpecsGoggles, learn at 1, grey at 100
- Bomb Bola LauncherBombs, learn at 1, grey at 45
- Cartel Xy Capture CrateHouse Decor, learn at 1, grey at 100
- Crafter's Mark IOptional Reagents, learn at 1, grey at 65
- Crafter's Mark IIOptional Reagents, learn at 1, grey at 85
- Crafter's Mark IIIOptional Reagents, learn at 1, grey at 95
- Crafter's Mark IVOptional Reagents, learn at 1, grey at 200
- Crafter's Mark of the Chained IsleOptional Reagents, learn at 1, grey at 101
- Crafter's Mark of the First OnesOptional Reagents, learn at 1, grey at 201
3D Model
First-party render from the game files. Model © Blizzard Entertainment.
Reading these numbers
At current lowest listed prices the 4 reagents for one craft of Precision Lifeforce Inverter cost 95 gold36 silver. Most of that is Twilight Bark - 8 at 10 gold each, 80 gold, 83.9% of the whole basket. Watch that one price and you have watched most of this recipe.
Break-even is 100 gold37 silver - below that listed price the craft loses gold once Blizzard’s 5% cut is taken. The crafted item has no current Auction House listing to compare it against, so the estimate above is left unknown rather than guessed.
Costs use each reagent’s lowest listed price; the estimate is the crafted item’s lowest listed price, times the items one craft makes, minus those reagents and Blizzard’s 5% sale cut. Listings are asking prices, not sales. Recalculated every snapshot and left blank rather than guessed when a price is missing. How we estimate crafting profit →
Other recipes that use Laestrite Ore
Featured in guides
Guides and routes on this site that cover Precision Lifeforce Inverter.
Data notes
- No Auction House price for the crafted item - output value unknown (it may be soulbound/BoE gear or an untracked item).