Grade builds, test upgrades before you buy them, price your drops and plan crafts, all on the real Path of Building 2 engine and live market prices. Not a chatbot's best guess. The actual numbers.
Most of it is free with an account. See plans
Import your character from Path of Building, paste an item straight from the trade site, and see exactly what it changes: damage, life, effective HP, the biggest hit you survive, and your resistances. Line up to five items for one slot and rank them by damage per divine.
Lulie sits in the corner of every page and knows what you're looking at. Ask "is this ring better?" on your build and she checks it with the real calculator, not a guess. Ask her to make the change and she does it: gear, passives, jewels, your Upgrade Lab, your crafts and your loot filter.
Fubgun's Flameblast Oil Grenade is a real, popular Mercenary build guide — a Flameblast / oil grenade ignite-stacking Gemling Legionnaire. We pulled its real PoB2 export and ran it through our own engine, no guessing involved. We don't just score raw damage and cost, either — piloting difficulty (learning curve, weapon swaps, how many skills you actually need to know to play it well) and endgame/farming-strategy fit are part of the same grade. Here's what came out of this one build that the guide itself never states in numbers:
This build's damage is almost entirely stacked ignite, not the hit itself. PoB's raw "TotalDPS" figure only counts the hit — its own separate "Combined DPS" figure (which folds in the burn) is 84x higher. That's not a guess or an estimate — it's PoB's own math, read correctly instead of at a glance.
Higher is easier. This build needs a weapon swap and tracks 14 distinct active skills you actually have to press — well above a beginner-friendly button count. The guide won't tell you that up front; the export does, if something actually reads it.
Scored against real content-tier reference hits, not vibes. We also estimate farming-strategy fit per strategy — for Breach, this build comes out to 96.2 / 100 (an algorithmic estimate from its own stats — disclosed as an estimate, not treated as gospel).
The grade is how good the build is — endgame readiness and farming fit. What it costs is shown separately above, so an expensive build is never marked down just for its price tag.
None of this is a knock on the build — it clearly works, it's popular for a reason. It's what happens when you check the real numbers instead of trusting a glance at an export. See the full computed build page →
A frontier model can describe how Path of Exile 2 mechanics work, but it can't run them. It has no access to PoE2's actual damage formulas, no live market prices, and no way to catch something like the Combined-DPS gap above — that's not a knowledge question you can reason through in text, it's a calculation you have to actually perform. We built the thing that performs it: the real, vendored PoB2 engine, not a language model's approximation of it.
Guides are how you learn a build in the first place — we're not trying to replace that. We're the step after: checking that build's real numbers against your own gear and today's live prices, not whatever prices existed when the guide was written. Think of it as the thing you run a guide's build through before you commit currency to it.
Grading, build guides, the Upgrade Lab, Price Check, the Item Crafter and the Farm Guide all come with a free account.
