Because most of the creatures in the deck can be cast for three generic mana, you often have a board of creatures that rest of the table must take seriously
Looting helps filter extra lands or otherwise useless spells into impactful ones, but the discard element is just as useful for decks that want to fill their graveyard to fuel cards like Treasure Cruise or Unholy Heat
First, Fireborn Knight deals 2 first strike damage to Caged Zombie
But thats three out of a hundred cards
This helps catch any mistakes made during set sorting, as a card will not match if it is not in the selected set
Twilight ProphetTwilight Prophet While there are a ton of playables in this list, I do find myself nodding my head along to a different deck's beat, given that the deck I'm trying to build is trying to stay as low to the ground as possible, with as many two-drops I can play for one as possible