To decks with high degrees of mana rocks and friends like Sol Ring, Voltaic Key, and Grim Monolith to stuff like aggressive decks that dont care about the mana, just the smashing, and use Armageddon to prevent you from answering their quick threats
Caesar leads like a dictatorhe's smart, charismatic, and has his massive army do the dirty work for him
Additionally, its activated ability serves as its own payoff, allowing you to do serious damage and gain a nice amount of life
I would recommend Portent for versatility and keeping it cheap
Armed with this mix of historical foils, the Commander Legends cards that inspired this investigation, an estimate for the target humidity, and an excess of time on my hand, I purchased three packs of humidity regulators from Amazon