1 Inferno Titan
Randy understood that the flip cards had great potential, but he also realized that we hadn't put our finger on it yet
Canopy Lands Kickstarted by Horizon Canopy in Future Sight well before more canopy lands/horizon lands appeared, these are solid cards you dont want too many of
Most notably it was just the best end-game you could build your deck towards, but its not clear that is really the case anymore as there are cards like Nexus of Fate that can go much bigger
There are a lot of Outlaws (assassin, mercenary, pirate, rogue, or warlock) who already care about or make treasures, so theres a high amount of synergy here
There are a plethora of single target reanimation spells available in black and white, with Animate Dead being one of the most (in)famous