Companion Games produced the Galactic Empires CCG (the first science fiction trading card game), which allowed players to pay for and design their own promotional cards, while TSR created the Spellfire game, which eventually included five editions in six languages, plus twelve expansion sets
Consider a card like Wasteland
Kilo, Apogee MindKilo, Apogee Mind has exploded onto the scene, rising to the #108 spot here on EDHREC in less than a year
This Magic deck can also use "aristocrats" to eat a chump blocker and derive value while fueling the graveyard
100 cards total (30 new-to-Magic cards)
That reason is often enchantment-based ramp like Wild Growth and Utopia Sprawl that produce extra mana from one land, letting this produce an absurd 4 mana rather than a respectable 2