mtg cards like coat of arms (Borderless) [The Lost Caverns of Ixalan Commander] Each creature gets +1/+1 for each other creature on the battlefield that shares at least one creature type with it Coat of Arms

Not only does it stop them from casting spells with even mana values, and that includes zero, but opponents also cant use Creatures with even mana values to block

Especially since the printings of Ragavan, Nimble Pilferer and Dragons Rage Channeler, the steal a casting cost 1 nonland-permanent mode has become very important and overall buffed the playability of the card

I think thats doable, but still hard enough that this probably needs a build around grade

Blue decks tend to be slow and patient, gradually building up card advantage and other resources until they're ready for the endgame, which is perfect for a midrange-oriented, moderately powerful format like Commander

With a card like Weapons Manufacturing, you can easily sacrifice the Munitions tokens to deal damage and gain creature tokens