We're staying on theme with Back In Town , a sorcery with a cost of 3 and X, which returns X outlaw creature cards from your graveyard to the battlefield, while Dead Before Sunrise is a de facto boardwipe at instant speed that gives +1/+0 to your outlaw creatures and the ability to tap to deal damage equal to their power to target creature
Five toughness is massive, so unless opponents pack Swords to Plowshares, Vindicate, and/or sweepers, they might be in for a bad time in the late game
Legendary Creature - Human Warrior Jace, Cunning Castaway +1: Whenever one or more creatures you control deal combat damage to a player this turn, draw a card, then discard a card
Now this ability does have that pesky wording of Whenever one or more outlaws (emphasis added) meaning that youll only get one Treasure per player you hit, but that still isnt terrible, as Mardu has many other methods of creating Treasure