Pauper : Pauper is a hyper-competitive format where you can only use commonsthe least rare cards in Magic
But aggressive decks can get similar team buffs from creatures that can attack, and Assault Formation defender decks dont want power bonuses

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Chart shows the price of Pikachu V #TG16 at the end of each month going back as long as we have tracked the item.
Cephalopod Sentry I want this card to be good
This doesnt seem like the be-all end-all of any strategies, but can be a nice pick up to smooth out your draws over the course of a longer game, especially if it doesnt end up having a high secondary market price