Power Balance

At March 1st, Konami really surprised every single player by not conducting their usual and proper job of keeping the game level balanced by forbidding and limiting certain cards for the Advanced Format. Inzektors, Wind-Ups, Chaos Dragons and Dino-Rabbits continued unaffected since their release. That is, until September.

It was released after the World Championship the most likely confirmed banlist and it will pretty much fix whichever mistakes Konami did:

Just for the artwork

Play with your brain, not with your money

Many players already knows the metas and the decks that are winning most tournaments. However, not all recognize the power of some cards which counters or increases the power of some meta decks. Because of that, when the winner of some tournament gets there using some unusual or weird card, the price of it increases ridiculously. And then, a former cheap card that was rarely seen becomes a high-priced (depending on it's rarity and number of releases) meta card, usually hard to get. Examples of that are Fiendish Chain e Inzektor Sword - Zektkaliber.