That being said, the mechanic itself is so powerful that even decks that play a regular number of creatures can find a use for convoke cards
But then I realized that it would be unfair if it simply penalized men, so I tweaked the card so that it automatically affected women (well, except naked women, and knowing our key demographic, a naked woman should already have a few significant play advantages) and men who went out of their way to get affected
Barbara Wright or Ian Chesterton both care about Sagas
Domain cares about the land type, not mana color, so its a little different
And most importantly, it was the hardest card to pull from Base Set packs, creating a scarcity dynamic in 1999 that embedded the idea of "Charizard = treasure" into the minds of millions of children who are now adults with disposable income and a powerful nostalgia itch to scratch
And as such they've proven pretty popular