As the total damage threshold for commander damage is 21, its a lot easier, in many ways, to strap up one creature with buffs and evasive keywords in order to deal 21 over one or more turns than to deal 40 with a wider board
Use tracked shipping
In the UK and the USA, this guidebook sells for a premium on eBay, but I went straight to the source and bid on it using ZenMarket's website, which then sent it to ZenMarket's address in Japan, who then sent it to me, all packaged up
Thats a different mechanic
Nowadays, it's almost expected for your best creatures to come with an enter the battlefield trigger
It just so happens that in Hour of Devastation , the U/R archetype has a variety of one- and two-mana cards that scale well into the late-game