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Perhaps most prominent among them is the fact that Alchemy cards are non-optional in certain formats

There are some cards that I could see coming off this section, especially if the Commander bracket system continues to help WotC make adjustments

UR Ultra Rare Code Generator X EARTH Level 3 [ CyberseEffect ] ATK 1300 DEF 500 If a Cyberse monster you control would be used as Link Material for a "Code Talker" monster, this card in your hand can also be used as material

6 new learder cards appear including Red Leader Monkey.D.Dragon of the Revolutionary Army

Like Kasla, it will trigger on the occasional decent spell, but that's not what I'm interested in

Based on the latest market prices tracked on TCG Stacked, a foil copy of K-9, Mark I is worth about $39.62 USD