It's in all the preconstructed decks
This Cinderella is all about the number two - two ink to play, two Strength, and two Willpower
Since we care about counters, cards like Danny Pink and Terrasymbiosis offer card draw, Pir, Imaginative Rascal and Hardened Scales make the Fractals bigger, and proliferate effects make them formidable
Or that Teferi deck that gets Squee (Telepathy plus an extra three cards in hand) can make the game much more challenging
If you use a Human to block a big creature, not only do you prevent damage, but you will draw cards to get you closer to your main win conditions
Queen Marchesa Queen Marchesa is a great Mardu creature for those multiplayer games