Urza, Lord High Artificer lets you break that symmetry on two particularly unfun cards, Winter Orb and Trinisphere
Same number, different cards, endless confusion
They pushed this card in every direction they could, from the 2/2 Cat Beast bodies to +1/+1 counters instead of until end of turn, and then they went and threw vigilance into the mix just to make sure
As a business, we want to minimize how many sheets we need to print for each set, so a lot of care (and a lot of math) goes into figuring this out
But youre spending eight or nine mana for a handful of fliers that dont do much else, so this is either your move toward an endgame when you cast it fairly or youre reanimating it early, and in both cases there are better options
I think its a really good idea to give players access to the effects of these powerful Reserved List cards, only they have to work a lot harder to make them work in most cases