Most walls are cheap, and the archetype can produce plenty of mana thanks to cards like Overgrown Battlement and Axebane Guardian, so its easy to cast numerous creatures a turn and overwhelm your opponents with your formidable offensive defenses
There are other anthems that should of course go in, but this would be my top option
Considering the card isnt just good, but also a whole lot of fun, this isnt too much of a surprise
Lets look at all the legendary creatures from March of the Machine to determine which are the best commanders to head a deck
Stock up on ways to protect Shirei if you choose to go this route, like Swiftfoot Boots, Feign Death, or Not Dead After All
(2023-09-01) If an ability triggers "whenever you tap" a basic land for mana and produces mana, that triggered mana ability won't be affected by Virtue of Strength