mtg elesh norn commander deck EDH Deck Norn, Mother of Machines 100 Magic Cards Custom Deck Tokens Flicker Mono White Elesh Norn and a 1/1

This means you could play Mutagen Man for a theoretical cost of two green plus five, and you'll generate five mutagen tokens that you can instantly sacrifice for free to give target creatures a +1/+1 counter

Build a deck around instants and sorceries, and Delver of Secrets basically becomes a 3/2 flyer the turn after it comes into play

But the bonus is that you can use these later for powerful effects, and these are the two in the cycle that really stand out to me

5 Sultai Arisen Cant Stay Dead With a focus on the graveyard, and specifically things leaving the graveyard, the black, green, and blue Sultai Arisen deck leaves a little to be desired compared to many other preconstructed graveyard-based decks

Olivias Dragoon 1B Creature Vampire Berserker 2/2 Discard a card: Olivias Dragoon gains flying until end of turn