It focuses on sifting through your deck to get the cards you need whilst healing or buffing your characters, for example
For each Magic set, we try to capture the essence of the world we are building and showcase the cards with both a main set version and an alternate-art custom showcase frame version
That said, you still definitely need to have a few of the payoff type cards to try playing this strategy I can tell you from experience that just playing a bunch of low-cost white and black cards wont have the oomph to finish off most opponents
Black-Red Black Mage Aggro Cast noncreature spells to deal devastating damage to your opponents
Taborax, Hope's Demise This 2/2 flying three-drop has lifelink with enough counters on it, and then when your nontoken stuff dies you'll toss one here
The deck must be powerful enough in the late game that its pilot can be confident in a win so long as he or she can defend him- or herself and drag the game out indefinitely