This item is acquired in-game. See its sources below.
In the Appearances collection, Sporefused Greaves is listed as Quest. Appearance ID: 91271. 3 other items wear the same appearance:
Read from the World of Warcraft client build files.
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Sporefused Greaves suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Sporefused Greaves is part of the transmog set Delver's Plate Armor (Warrior, Paladin and Death Knight only). The other 16 pieces:
Secret-Dredger's Cloak
Secret-Dredger's Helm
Secret-Dredger's Breastplate
Secret-Dredger's Sabatons
Secret-Dredger's GauntletsSecret-Dredger's Legguards
Secret-Dredger's Mantle
Secret-Dredger's Girdle
Secret-Dredger's ArmplatesEarthen Traveler's HelmEarthen Traveler's BreastplateEarthen Traveler's GauntletsEarthen Traveler's MantleEarthen Traveler's ArmplatesCharred Nerubian WarplateCongealed Cinderbrew BattlebootsBuilt from the World of Warcraft client build files and recorded Auction House snapshots.
Sporefused Greaves is not traded on the Auction House, so it has no live market price. It is acquired in-game from the sources listed above. This page collects its first-party game data (identity, effects and where it comes from) from the official World of Warcraft client build.
TheWoWDB