Trash for Treasure is best treated as a shopping list, not a path you click through at random. Before Season 16, one Greater Temper attempt needs thirty Scrolls of Restoration and 1,000 Obducite. That sounds manageable until you try to prepare several ancestral items at once. I keep a note beside my stash and use D4 items only as a reminder to focus on gear that will actually stay useful. Two attempts mean sixty scrolls and 2,000 Obducite, before a single failed roll adds to the bill.

Set the target before farming

Count the items that deserve serious investment, then multiply the recipe. Do not count every decent drop. A temporary weapon or levelling piece is rarely worth thirty scrolls. Gold matters as well, since repairs, vendors, and repeated tempering can drain the reserve faster than expected. Use this quick check before opening the crafting screen.

Choose the ancestral pieces you expect to keep.
Multiply the number of pieces by thirty Scrolls of Restoration.
Multiply the same number by 1,000 Obducite.
Leave enough gold for repairs and another craft cycle.

Measure both materials, not just one

Obducite and restoration scrolls often build at different speeds. A route that fills one side can leave the other badly behind. After a timed farming session, compare the results against the actual recipe rather than celebrating the larger pile. The weaker side should decide your next activity.

That simple comparison saves a surprising amount of wasted time.

Build the route around salvage

Choose Tyrael Boons that improve salvage returns, tempering supplies, or the conversion of unwanted gear. Cosmetic or unrelated choices can wait. Elite-heavy activities usually give better material flow than slow story cleanup, especially when your inventory fills quickly. Keep only items with a clear affix plan. Salvage the rest before the next run, because a full bag breaks the rhythm and reduces the amount you can bring home.

Know when to walk away

Do not start a craft with 700 Obducite and twenty-two scrolls, hoping to finish the shortage halfway through. That usually turns a focused session into a rushed detour. After each attempt, run a short salvage loop and rebuild what was spent. If two rolls miss on a nonessential piece, store it and move on. Spend the next thirty scrolls on a slot that improves the character now, and keep a separate gold reserve for the surrounding costs. When two planned crafts are funded and gold becomes the tightest resource, switch activities and consider buy cheap D4 items only when it supports a genuine gear gap.