yu gi oh arm deck BW x Yu-Gi-Oh! Blind Box Series 1 – Bear Walker Age Group Armory Arm | Card Details

Just typing up this review here has me convinced, and as proof here's the early decklist

Sliv-Mizzet, Hivemind Whoever came up with the name Sliv-Mizzet, Hivemind deserves an award

Making sure to support him with plenty of disruption and recursion cards allows Emet-Selch to continuously discard and then cast spells from the graveyard at a reduced cost, which also paves the way for a quick transformation to make him even more powerful

Black and White All the Trainers in this set were already covered except Professor Juniper, which I will gladly include on this list as it is just an Oak in Supporter form and Supporters can be more easily fished out of a deck than a Trainer can

Evasive creatures also pair nicely with buffs from cards like Craterhoof Behemoth, or cards that grant infect like Triumph of the Hordes

If the total mana value of historic permanents you control changes while activating mana abilities (probably because you sacrificed one or more historic permanents), the cost to cast Excalibur remains what you previously determined