This does arguably reintroduce the problems that the three-year rotation initially tried, but failed, to solve, but there is another solution that could work better
(11/17/2025) If the copied creature has in its mana cost, X is 0
The most likely reasons are if it's sacrificed, if it's legendary and another legendary creature with the same name is controlled by the same player, or if its toughness is 0 or less.
One of the masters of FINAL FANTASY had gone back and just painted some new classics
Character popularity, listing volume, and possible future pricing are intentionally outside this identity table
If a source you control would deal damage this turn to an opponent or a permanent an opponent controls, it deals triple that damage instead