If Basim Ibn Ishaq lives long-term, Mox Amber will reliably tap for mana
It suffers from the impending Overlords cycle being quicker payoffs than a 6-drop, but in a year podcasts will be wondering how everyone missed this Golgari card the whole time
Despite the predominance of creatures in the top ten list, it's an enchantment and land that take the top two slots - the former for its utility in Standard and Commander and the latter for its ubiquitous nature in Commander

Other CGC-certified highlights pedigreed to the Jeff Ferreira collection in the auction include: a Blood of the Martyr (1994) The Dark, altered by Christopher Rush graded CGC 8 (lot 36040) a Plains (1998) French Ice Age Artist Proof, with a Black Lotus Drawn on Back graded CGC 8 (lot 36059) a Blank Card (1996) World Championship Decks, with a hand painted Black Lotus and heart graded CGC 7 (lot 36065) a Quartet of Phyrexian Negator (1999) Urza's Destiny Artist Proofs, with hand painted backs making a mosaic graded CGC 8 and CGC 8.5 (lot 36070) a Eureka, (1994) Legends graded CGC 9.5 (lot 37049) a Hell's Caretaker (1994) Legends graded CGC Pristine 10 (lot 37054) a Mirror Universe, (1994) Legends graded CGC 9.5 with sub-grades of 9.5 for Centering, 10 for Surface, 9.5 for Corners and 9.5 for Edges (lot 37058) a Ishan's Shade (1995) Homelands Artist Proof signed by Christopher Rush graded CGC 8.5 (lot 37120)

8.1/10$0.25 Al Bhed Salvagers Creature Human Artificer Warrior 2/3 Whenever this creature or another creature or artifact you control dies, target opponent loses 1 life and you gain 1 life
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