For his “draft matters” ability, you draft Deal Broker face-up, and immediately after the draft, you can choose to trade one card from your pool for another card in another player’s pool from the same draft. You may accept only one of those offers.
The best part is that Deal Broker is also a 2/3 Artifact Creature for 3 colorless mana. This means he can be played in just about any deck, even outside of Conspiracy matches. This is a very interesting card that both helps you swap an unneeded card for something that may be of more use. It's a card playable in almost any draft deck and pretty neat for players of the ever-growing Cube draft format.