Ive played with a few like Emerge Unscathed to protect against Jund
Prereleases are a great place to learn a new set in a relaxed environment, so dont feel like you need to do everything perfectly immediately
Its not possible to cast both sides at once, so this is the default case
The deck has a number of efficiently-costed, strong early game plays including Reinforced Ronin, Goro-goro, Risona, Selfless Samurai, etc
Better Mid-Cost Amethyst Steel Deck The mid-cost version gets us much closer to the original design of the deck: dominating the board with sticky Resist characters while feeding yourself lore, cards, and extra Strength through bouncing cards
These are all great examples of useful and cheap cards you can collect for your Commander deck