I wrote about what constitutes a Bracket 2 Commander the other week, and if theres one headline from that article, I believe that Bracket 2 works best when Commanders choose from mana advantage, card advantage, and win condition, and dont try and cram as many of them as possible into the zone
It also featured two excellent Commander decks, with the Avishkar-themed Living Energy giving you new ways to make Energy counters, and Eternal Might bringing back the many Zombies of Amonkhet with a new top-tier Zombie commander
When you cast Radiate in response to a spell that targets a single permanent or player, you copy that for each possible legal target
Can You Copy a Legendary Sorcery
Building your deck around mechanics like treasure, cascade, or looting unlocks lines of play which are so good, theyre almost unfair