op11 one piece booster box Piece: A Fist Of Divine Speed Pack (OP-11) – Double Infinity Gaming 30 Uncommons One Piece OP-11 - A

Spider-Rex also has ward , making targeted removal annoying

For five mana, this Artifact lets you pay two mana and tap it to roll a dice, then you have to subtract the number of cards in your hand from the result, and if the result of that is 0, you have to discard your hand

Id rather fill my deck with cheap efficient spells and mana fixing and have my powerful payoff waiting in the Command Zone

This is the reason for trying to build a walls deck, and the fact that this is a decently popular commander is what still endears me to the Magic community

Plus, apart from being tribal Wizards, Mairsil, the Pretender is a great build-around-me commander that can go a bunch of different directions, and Kess, Dissident Mage opens the door for a sweet Grixis spellslinger build