Theyre easy to buy and sell
As the rarest of the three Radiants, it carries both symbolic and market weight, often the first card collectors target when building Pokmon GO sets
Those seeking to do slightly less terrible things to their friends during casual commander games will find repeatable mass blink effects that net you cards (Cloudblazer, Unquestioned Authority, etc.), the ability to get around mana costs through the Manifest mechanic (Cloudform, Scroll of Fate, etc.), or even double mana from mana rocks is plenty sufficient when it comes to generating incremental value
And if you're the type who believes in the heart of the coin flip, Azumarills here to reward your gambling spirit
Notably, players cant try to save their creatures after youve chosen a creature type
I cringe when I hear someone say 32 or 33, but I hear it (I always get "but I've got like six mana rocks too!" in response)