Cards should be unsleeved, sorted, and packed carefully before sending
The possibility that any card in Historic can be retroactively rebalanced, nerfed, or fundamentally changed at any time throws Historic deck-building into volatility, and opens the otherwise static format to unanticipated changes
Brawl is singleton and easier to manage with your existing collection, Historic has similar mana bases to Pioneer, and Timeless has the additional expense of fetch lands, not to mention all the powerful nonland cards in both formats
Ill do my best to speculate with Streets of New Capenna cards I havent interacted with and go over what I think each commander does (and doesnt do) best
Its not a weak card by any means but most players would probably recommend running any other eldrazi legendary creature as your commander without taking card prices into account