Tasha, the Witch Queen I was struggling to find a play-from-exile planeswalker that could be used as a commander up until I stumbled upon Tasha, the Witch Queen
More mana means sinks and equipment become powerful tools Sledding Otter-Penguin is the first and cleanest mana sink I could find, and surely you know of a better one, please comment with it
So while the Equipment deck is fairly well-supported, the "Power 7+ Matters" theme is mostly relevant only because of our commanders, Cloud, Ex-SOLDIER and Tifa, Martial Artist, which reward you for boosting their power to 7 and have a starting power of 4 which is high enough to quickly reach the goal with a single Hero's Blade for example
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That makes it pretty fast on the uptake