The Graft system is one of the biggest new things in Path of Exile 3.27. The system adds a fresh layer of character customization that changes how builds are made. The core of it is the Genesis Tree, a separate progression web you feed and shape to produce graft items and special currencies. The Tree does not directly buff your base stats. The Tree changes what grafts and Foulborn currencies it can generate for crafting PoE 1 Currency.

Graftblood is the raw input you must collect. You gather Graftblood from the Keepers/Breach-style encounters the league adds. The Graftblood is the resource you invest in the Genesis Tree to trigger production and unlock graft-focused outputs. A steady supply of Graftblood keeps the Genesis Tree working and lets you plan batches of graft creation rather than waiting on random drops.

Grafts are the items you make with this system. Grafts fit into new temporary equipment slots and can grant strong passive bonuses or unique active skills. The best grafts can change how a build plays and open new archetypes. Grafted items have their own rules and their own crafting path, so the graft economy stays separate from standard gear crafting.

Foulborn currencies are the special orbs the Genesis Tree can birth. These currencies act like charged versions of familiar orbs but skew rolls toward higher-tier modifiers on grafts. The system includes Foulborn Augments and Foulborn Exalted equivalents and implant items that upgrade graft rarity. Because these currencies are tuned for graft items, they give more predictable, high-value results than using standard orbs on grafts would.

To work efficiently, treat grafting like a production loop: pick targets, farm the right inputs, and spend currency only where it matters. First, decide which graft types and modifiers matter for your build and lock that goal in. Second, specialize the Genesis Tree toward wombgifts and nodes that favor birthing the Foulborn currency or graft types you need. Third, farm the Breach/keeper encounters that drop the most Graftblood so your pipeline never runs dry. Small, repeatable runs beat rare, random spikes if you want steady progress.

Keep regular PoE 1 Currency buy reserves for non-graft needs while you run a graft pipeline. Chaos and Exalted orbs still pay for maps, bench crafts, and key sustain items that support your graft farming. Use standard currency to buy maps, repair gaps in your gear, and handle map sustain so your graft runs stay efficient. Meanwhile, use Foulborn currency and implant items selectively on grafts that already fit your plan so you do not waste rare graft-specific currency on bad rolls.

In practice, run short sessions that loop Breach encounters until you have enough Graftblood, then return to the Genesis Tree to push specific wombgifts and collect the Foulborn output you targeted. Spend that output on grafts that match your build focus. Track which Tree nodes produce the best currency and slowly retool the Tree rather than scattering points.