mtg three card blind Avatar: The Last Airbender: Bumi, King of Trials 3 Card Blind - Meta

They are not always auto includes as you can easily build these decks exclusively with cards that have little or no colourless requirement in the cost

Lifebane Zombie is unexciting, but it can trade and block and your late game is just so much better that Id do anything I could not to die in the early turns

Additionally, there's no real reason to play this card when Three Steps Ahead is already so powerful, and only sees a max of one or two copies in current Azorius Control lists

For Standard decks like mono-blue or mono-red, this often means playing a lot of cheap cards with immediate impact, since four one-mana spells add up to more impact than one four-mana spell