While you could consider any card with the Rakdos watermark as a Rakdos card or even some mono-colored cards that have mechanics that fit Rakdos decks perfectly, for this ranking I talk about cards that are specifically both black and red in color identity
Its been a while since I purchased an assortment of cards with the intent of selling them individually and grind a profit
1 Wildcard of any rarity Can be one of the cards mentioned in the above common, uncommon, and rare or mythic rare slots, including Booster Fun cards
Uro, Titan of Nature's Wrath The first time you cast Uro, you pay 3 mana for 3 points of life and a card draw
Muldrotha, the Gravetide When you see Muldrotha, the Gravetide at the table, a chill goes up your spine
Common and uncommon cards Recent standard print cards Low demand rares These cards are usually sold in bulk lots