First, the card lacked supply because it was only printed as a buy-a-box promo, which caused its price to spike to absurd levels, especially on Magic Online
Were zoning in on static abilities that let you look at the top card of your library at any time, then give you the choice to cast cards from the top, sometimes with an alternate casting cost
The existing mana constraints checklist for those wondering: Allied pairs can support doubles in both colors due to cycling lands and Ixalan checkland reprints (U/W Gift, U/B Control), no-one-drops allied shards work due to an excess of both of those (Grixis Energy and Naya Monsters), and wedges work best with one-drops in the shared enemy color (Llanowar Elves in Sultai) or as allied pairs splashing the third for some whammy (Brad Nelsons Sultai Midrange)
Not a ton can remove it so it's always a target for land removal if they have it
Character gravity: Luffy, Zoro, Nami, Shanks and other headliners carry built-in collector bases, especially with standout art
Graded Population Report: Charizard [1st Edition] #4 Visualize the distrbution of grades in the chart
