Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
Where Fiendish Hellfire Core Fits
Items That Share Fiendish Hellfire Core's Icon
Fiendish Hellfire Core uses icon file 1371268, which 1 other item also uses. The 1 closest by item ID:
Badge of VengeanceID 143333 · Consumable"A powerful token that Silgryn has held on to from before the shield went up."
Items Numbered Next to Fiendish Hellfire Core
Blizzard numbers items as they are created, so the named items next to ID 137575 (137570 to 137580) were usually added in the same batch as Fiendish Hellfire Core: the same quest line, zone, vendor or reward set.
Bloodfang CocoonID 137570 · Miscellaneous · item level 10"Teaches you how to summon a rideable Bloodfang Widow."
Archmage Vargoth's JournalID 137571 · Consumable"A brand new journal titled, 'The Nightborne Soulstone.'"
Zoarg's HeadID 137572 · Quest"Otherwise indistinguishable from other felhounds, this particular demon has an extra set of razor-sharp teeth."
Reins of the Llothien ProwlerID 137573 · Miscellaneous · item level 10"Teaches you how to summon a Llothien Prowler."
Living Infernal CoreID 137574 · Miscellaneous · item level 10"Teaches you how to summon a rideable Felblaze Infernal."
Dim Coldflame CoreID 137576 · Miscellaneous · item level 45"Teaches you how to summon a rideable Coldflame Infernal."
Predatory BloodgazerID 137577 · Miscellaneous · item level 10"Teaches you how to summon this mount."
Snowfeather HunterID 137578 · Miscellaneous · item level 10"Teaches you how to summon this mount."
Brilliant DirebeakID 137579 · Miscellaneous · item level 10"Teaches you how to summon this mount."
Viridian SharptalonID 137580 · Miscellaneous · item level 10"Teaches you how to summon this mount."
Fiendish Hellfire Core Client Record
The raw ItemSparse values for item 137575 in the current client build.
Vendor buy price
2,000 gold
Unique (max carried)
1
Material
Jewelry
Content tuning ID
872
Flags
1073745920 / 8192 / 0 / 16384 / 0
Read from the World of Warcraft client build files: Item, ItemSparse, Lock, Holidays, AreaTable and CollectableSourceVendor.