Charm & Horadric Seal Trading Guide
Charm trading
Charms are traded as Set charms and Unique charms. Magic and Rare grade charms are not traded. Unique charms are the most frequently traded grade, so the onlytems listing screen defaults to Unique charm and the shared class automatically, leading straight into option search and entry as soon as you arrive.
Charms have a power axis (Normal and Ancestral) separate from grade. When listing, specify both grade and power. For Unique charms, enter class, body, unique power, and random options; for Set charms, enter class, set bundle, and selected tiers. To pass listing validation you must fill 2 lines of regular options (set bundles are an exception).
Horadric Seal trading
Horadric seals are traded only at the Legendary grade. Magic and Rare grade seals are excluded. Since only one grade is tradable, entering the listing or search screen selects Legendary automatically and leads straight into choosing class and options.
Seals have a different option pool for each class. So class is an important condition in both listing and searching, and it is more accurate to set the class first and then apply option conditions. Listing validation requires 3 option lines (1 regular line plus a 2-line set-linked pair, or 3 regular lines).