Bitterblossom's synergy only goes so far as it being a one off enchantment cast
Dragon gives ongoing value, loads of reach and high stand alone power level all while being fairly well on theme
Remarkably, there is a confirmed sale of this card for over $500, and that's where its market value started out, but it has since crashed all the way to $104, and based on more recent sales for under $100, it could fall further still
"When I was a kid, maybe his cards were going for 20, 50 bucks ten years later, and just like I'm seeing these cards sell for several hundred dollars, several hundred thousand dollars." He said nostalgia plays a major role in the market
Shichifukujin Dragon was not on the most expensive list because it is one of a kind
This plays notably well with landfall cards like Nissa, Resurgent Animist, Lotus Cobra, and Tireless Provisioner that generate mana via landfall thats 6 extra mana from four triggers and two untapped lands, letting you spend 11 mana the turn you played Windgrace