This is quite easily abusable with Treasure tokens especially, but it doesnt end there
This should get you off to a good start with the Night Witch: you can also watch Baba Lysaga (or Baby Lasagne) played in one of my favourite episodes of Tolarian Community Colleges Shuffle up and Play series, focused on Budget Commander decks, which should give you some additional ideas on how to build her without breaking the bank: Wilhelt, the Rotcleaver Innistrad: Midnight Hunt brought us the Undead Unleashed precon and, right out of the box, this deck plays pretty well
Taking out some larger creatures in favor of smaller Ninjas means that I can hold back lands to pitch when looting
Lets see what you can find in March of the Machine set boosters as an example: 1 Multiverse Legends card At least 1 battle card 1 traditional foil/foil-etched card of any rarity including Multiverse Legends in traditional foil and the foil-etched treatment 2 wildcards of any rarity (opportunity to open MOM Commander cards, Jumpstart booster rares, or Multiverse Legends) 1 basic land/full-art harbinger basic land in traditional foil or non-foil 1 double-faced Phyrexian common/uncommon 2 connected uncommons 2 connected commons 1 art card 1 token/ad card, double-faced Helper card, or The List card Id look for old set boosters if Limited play isnt your jam and youre buying cards to increase your collection
Absent much self-mill in Theros: Beyond Death, this will likely be how Escape plays out in Limited (especially in red and white)