You can't sell them or pass them off as real cards, and you can't register them in sanctioned tournaments
To that end controlling the state of the game through discard and planeswalkers is paramount
It's hard not to pick powerful commanders from across the franchise when considering cards to add to your decks, but even cheaper card options with shorter abilities can have great potential
Demilich If I had a magic time machine and could make one change to the game, I'd make Liches Skeletons, not Zombies, for flavor purposes, and I'm glad to see that Demilich at least plays into that canon nicely enough
White decks can draw a bunch of cards by sacrificing some soldier tokens to Skullclamp, for example
"Typically" is used due to a change in card distribution in Time Spiral which allows premium cards of any rarity to replace Common cards instead of cards of their own rarity