If a color is so weak that it being heavily underdrafted doesnt counteract its low power, then the format is the worse for it (by eliminating a color, four entire color pairs are lost, limiting a draft from ten possible color pairs to six)
You can acquire these in non-foil in Collector Boosters, Play Boosters, Bundles, and Scene Boxes
If you can remove six defense counters from Invasion of Ikoria, you get to transform it into an 8/8 with reach, and each non-Human creature you control may assign combat damage as though it were not blocked
Or maybe just 5 card swaps instead of a whole bunch of them
Belle was also featured in The First Chapter as an Enchanted and Legendary card
Its also a way to give you repeatable wraths if you have a sac outlet and a wide enough board