one piece 10 booster box This set is an absolute must One Piece OP-10 Booster Box

That means dual lands, shock lands, and more are on the table

If your deck has many cards in the 4-6 range, burn decks will get under you, so playing against burn decks is a good test to know if your deck can compete with the most aggressive decks

The Big Idea comes with a fun subgame built in that lets you start churning out 1/1 Brainiac tokens, with such cool artwork that it is worth doing just to giggle at the picture

Kami of Whispered Hopes from March of the Machine would fit in here nicely too, but my copies of that card were all spoken for

Credit: Wizards of the Coast Rush of Inspiration / Crackling Falls Marcy: On the back of the last card, if this goes in a deck with energy, I think this has good flex