Being able to wait until the last moment keeps opponents guessing and lets you pivot based on what the table is doing
The best lands for Dragon Commander decks are the most efficient dual lands, fetchable fixing, and lands that enter untapped
Exhaust means you can only do it once per game, but blinking Loot, turning it into soup with Agatha's Soul Cauldron, or recasting him solves this problem
It has items, locations, Reckless challengers, Huey-Dewey-Lewey combos, and a couple of Rise of the Floodborn cards that weren't playable back then and still aren't playable now
Amethyst/Ruby can be useful for control decks focused on maintaining sway over the board, while a good Emerald/Steel build tends to angle for weakening an opponent by depleting their resources through discard abilities