In the physical TCG, promo cards are just like this, where certain cards can only be found in certain products or at special Pokmon events
Aside from that, its a decently flexible tool to have in your arsenal, particularly for Pioneer, which tends to be slightly slower than Modern
Later, you can pay one white to level it up and create a copy of any token you control, and then gain another level to give all of your token creatures +2/+2
Its still not surprising that this is only an uncommon, but if you played any March of the Machine Limited, youll remember the effect of this one
Powerful, staple reprints include Enchantress's Presence and Eidolon of Blossoms as potent card draw, and Herald of the Pantheon as enchantment cost reduction