Youll either want a high density of huge creatures or some way to set up the top of your library
Magic 's approach to such things has clear precedents
Skeleton Crew On top of being a lord for both skellies and pirates, Skeleton Crew boasts a powerful triggered ability, creating a 2/2 (effectively 3/3) whenever creatures leave your graveyard
N'gathrod is the illithid pirate captain of the spelljamming ship Scavenger, and his card represents his thieving nature with the ability to steal artifacts and creatures from other players' graveyards
Once again, going off artwork, game design, and knowledge of mechanics alone, Im hoping Emet is an Orzhov or Mardu creature with the ability to bring allies back from the graveyard or banish allies and then play them
Black-Red features the set's other new mechanic, Mayhem, which lets you play cards for cheap from your graveyard if you discarded them on the same turn