There are a handful of creature types like Fifth Dawn s bringer, that show up on one cycle of cards
Then youll use your energy, always as a result of a trigger or activation, never (yet) as a casting cost in the upper right corner or a card
9-cost Charlotte Linlin forces opponents to make a tough choice between trashing a Life card or trashing two cards in their hand, dropping them lower on resources
Illusions Illusions The illusions Minn makes get bigger for each other Illusion you control, and so we need ways of either creating tokens, or buffing them up in different ways ready to be popped to cheat out a big, expensive permanent
Another is if theres a new Commander-specific mechanic thats worth exploring, like Backgrounds in Commander Legends: Battle for Baldurs Gate
You can tap Hazel and pay to life while tapping any number of tokens you control to generate that much mana