The key difference is that while Dimir Mill plays like Burntrying to go as fast as possibleAzorius plays closer to a control deck
Some commanders, like Selvala, Explorer Returned, can help you accomplish this, while others, like Maelstrom Wanderer, reward you for ramping into them early and potentially let you recast it back to back once theyre dealt with
Genuine Magic cards will have micro text that corresponds to the card's edition
The biggest bomb removal you can find is Aura Shards, no question about it
But, with Commander Legends coming out later this fall, Im pretty doubtful that Wizards wont want to cash into this part of their game even more
Its matchup-dependent, but think about how often people rely on enchantments to set up their engines