Seeing how Arkana had no qualms about damaging his own cards, this made Yugi realize that Arkana used the stripper technique, where Arkana trimmed the edges of his "Dark Magician" cards, so when Yugi cut Arkana's Deck he would inadvertently cut it at the point so that the "Dark Magician" would be on top of a small stack, ensuring that one of them would be at the top of the entire Deck
In a combo-heavy deck (like synchro decks tend to be), this is fantastic at replenishing your resources and for giving you even more monsters to synchro summon with
It became a key component of the version that ruled block, the best version now in Standard and now it is reaching out in Extended not just to Affinity but to other decks as well
Madison Li makes energy for every artifact you cast, and has a bunch of useful activated abilities that all cost energy
C Common Jar of Avarice X TRAP Target 5 cards in your GY, except "Jar of Avarice"
I have no idea what the correct balance for the four aforementioned cards is, but having more pieces in our toolbox to fully streamline the deck cant be a bad thing