You should keep in mind it covers single cards only, not sealed boxes, packs, or lots, and eligibility and thresholds differ between eBay marketplaces
Set Design decided they didn't need to care about non-enchantment creatures and removed both the Horror and Nightmare reference and the attack trigger
Other printings of Eye of Vecna $19.72 Eye of Vecna Adventures in the Forgotten Realms Promos $2.11 Eye of Vecna Adventures in the Forgotten Realms Promos $1.43 Eye of Vecna Adventures in the Forgotten Realms Promos Eye of Vecna Magic Online Promos Most valuable cards in Adventures in the Forgotten Realms View the full price guide $72.77 Old Gnawbone Adventures in the Forgotten Realms $50.77 Old Gnawbone Adventures in the Forgotten Realms $48.31 Tiamat Adventures in the Forgotten Realms $24.76 Tiamat Adventures in the Forgotten Realms $16.02 Lolth, Spider Queen Adventures in the Forgotten Realms $15.06 Circle of Dreams Druid Adventures in the Forgotten Realms $14.12 Circle of Dreams Druid Adventures in the Forgotten Realms $14.03 Teleportation Circle Adventures in the Forgotten Realms More cards by Irina Nordsol $357.79 Ivory Tower The Brothers' War Retro Artifacts $247.75 Sundering Titan The Brothers' War Retro Artifacts $77.00 Ghostly Prison Secret Lair Drop $38.39 Celestine, the Living Saint Warhammer 40,000 Commander $28.58 Deadly Rollick Avatar: The Last Airbender Eternal $26.19 Celestine, the Living Saint Warhammer 40,000 Commander $24.08 Raul, Trouble Shooter Fallout $24.00 Continue
Even unopened booster packs sell for thousands of dollars
Seifer Almasy Rarity: Rare TYPE: Legendary Creature SUBTYPE: Human Knight CMC: 4 Mana cost: USD: $3.83 EUR: 3.18 TIX: 0.00 EDHREC RANK: 10742 (3/4) Whenever a creature you control attacks alone, it gains double strike until end of turn
The two join Karlach and Astarion as BG3 characters who have previously been part of Secret Lair
