The extreme scarcity, combined with the prestige of owning a card signed by the author, has driven its valuation to insane heights
The Scepter is a 3-drop three equip dork that gives a nice +2/+0 and trample, so it likes deathtouch as well
The Dragonlord is very practical at smashing on arrival
All Hallow's Eve Armageddon Clock Brambleback Brute Burdened Stoneback By Gnome Means Chisei, Heart of Oceans Clockwork Avian Clockwork Beast Delay Divine Intervention Etched Slith Fain, the Broker Ferropede Flitterwing Nuisance Gavel of the Righteous Glen Elendra Guardian Hexavus Hovel Hurler Hungry Hungry Heifer Leatherhead, Swamp Stalker Loch Mare Medicine Runner Mister Hyde, Monster Within Moonlit Lamenter O'aka, Traveling Merchant Power Conduit Rasputin Dreamweaver Sanctuary Warden Scholar of New Horizons Slumbering Walker Soul Diviner Spinal Parasite The Duke, Rebel Sentry Thrull Parasite Xavier Sal, Infested Captain
DUSKMOURN COMMANDER: RED Barbflare Gremlin is an interesting one
The Jumpstart set was famous for this, creating valuable dual lands where a basic land was double printed with another card