The only drawback was that, for each card taken from the deck, another must be sent to the graveyard
White has a handful of decent ramping options as well, such as Kor Cartographer, Boreas Charger, and Knight of the White Orchid - each of which will help find you more Plains in a pinch
What custom Magic cards usually means (so you dont overcomplicate it) Most people making custom Magic: The Gathering cards fall into one of these buckets: Alt-art re-skins: Same card text, different art and vibe (your Sol Ring is now a cursed waffle iron, as it should be)
The market isnt static, and savvy collectors watch both sides for opportunities
Despite its immense power and devious ability, its art is nothing less than adorable, featuring a giant Umbreon reaching out at the moon
For example, if its discard, countered, or destroyed, its put into your graveyard, remaining in the game