If a card was played in a tournament more frequently, the cost of the card would be higher, in addition to the market availability of the card
In FF7 , Jenova is described as a calamity that fell from the sky long ago. Shes not a mutant herself but is instead an alien with a mutable genetic structure, absorbing the traits of beings she encounters while also inserting her own DNA into them, transforming them into mutants that eventually can turn into monsters

Sets that primarily take place there : Antiquities , Legends , The Dark , Fallen Empires , Ice Age , Alliances , Mirage , Visions , Weatherlight , Urza's Saga , Urza's Legacy , Urza's Destiny , Portal Second Age , Prophecy , Invasion , Planeshift , Apocalypse , Odyssey , Torment , Judgment , Onslaught , Legions , Scourge , Coldsnap , Time Spiral , Planar Chaos , Future Sight , Dominaria , Dominaria United , and The Brothers' War Planeswalker natives (with planeswalker cards) : Bolas, Dakkon Blackblade, Freyalise, Jared Carthalion, Jaya, Jeska, Karn, Liliana, Teferi, Tevesh Szat, Ugin, Urza, Venser, and Lord Windgrace Dominaria was Magic 's initial homeworld and has been the setting for more Magic expansions than any other plane
Doing so also prevents the player from attacking that turn, so it is best to set up a Rank 10 Xyz play with it