Most decks can utilize a Fog effect at some point in a game, too
You don't make any decisions about new targets for the spell until you win the flip
Our goal is to protect ourselves early by amassing an army (Moria Scavenger) and stealing our opponents stuff (Hostage Taker) while milling/discarding huge haymakers (Rampaging War Mammoth)
Big deck energy: How to build a Commander deck Originally, Companion cards could be played right from the sideboard, but this was deemed too powerful pretty early on, and the rules were updated a couple of months after Ikoria came out
Brainstorm is really cheap to buy as well
Later in the game, you can have a greater toolbox, with different exiled creatures that can provide card draw, bounce, removal, or just size