yugioh forbidden memories cheap dragon cards Harpie's Pet (Forbidden Memories) [FMR-002] Prismatic Secret Ra Dueling Mirrors Singles Thousand Dragon (FMR) - Yugipedia

Theres also some useful vampires that can support the deck even if theyre not knights, and some knights that can be turned into vampires through other cards

Know When to Buy Patience is your best friend in the card collecting world

16 Greninja ex (198/167) Ultra Rare Fighting-type Greninja ex is a powerful card in play, especially the Terastallized form of it, so many players have crafted strategies and decks around this card

At number 8, it's Godless Shrine which, as you can probably guess, taps for White and Black at the cost of land

Delver of Secrets is great because it turns into a flying monster fairly quickly