How do I get +15% Gathering and 10% Swiftness Banner in GW2?

Check the Acquisition and "Sold by" sections, which list the vendors, containers, salvage sources and achievements that grant +15% Gathering and 10% Swiftness Banner, where known.

What is the Trading Post price of +15% Gathering and 10% Swiftness Banner?

The live buy and sell prices are shown at the top of the page, pulled from the official Guild Wars 2 Trading Post API.

Masterwork · Immediate

+15% Gathering and 10% Swiftness Banner

Spawns a guild banner that will give a +15% gathering chance and 10% movement-speed boost to any ally that touches it for 30 minutes. Does not stack with other gathering or speed banners.

Soulbound on AcquireVendor 25 copper

No crafting, acquisition, achievement or collection data is available for this item yet.

Item data from the official Guild Wars 2 API. Acquisition, salvage and collection data from the Guild Wars 2 Wiki.