There's no clean solution for that without leaving somebody out along the way, although leaving out LATAM by itself really sucks and I hope they could fix whatever caused that
Extra life naturally plays into mill strategies and this is the way to weaponize it
Something like Venser, Shaper Savant then becomes a reusable free bounce spell, Flickerwisp makes an even bigger impact on the battlefield, and Snapcaster Mage is even more ridiculous
Exception: The following five promotional cards are each printed in a language that no other cards are
This is another problem without a good solution, as we want to expand with "extra spell" mechanics, but there's only so much flexibility in card frame design
If you take your 60-card deck and put each spell in a pile based on how much mana it costs, how many cards are in each pile