Activate Aeromoeba by discarding Ovalchase Daredevil.
Activate Shilgengar's first ability by sacrificing another creature, creating a Blood token.
When the Blood enters the battlefield, Ovalchase Daredevil triggers, returning Ovalchase Daredevil from your graveyard to your hand.
Skeleton Crew triggers, creating a 2/2 Skeleton Pirate creature token.
Repeat.
This ingenious engine loops through the graveyard and hand by leveraging Aeromoeba's self-discard ability to feed Ovalchase Daredevil straight into the graveyard, ready to be retrieved whenever an artifact enters the battlefield. As Shilgengar, Sire of Famine sacrifices your creatures to generate a steady stream of Blood tokens, each new artifact triggers Ovalchase Daredevil to return to your hand for the next discard cycle. Meanwhile, Skeleton Crew watches the graveyard with a watchful eye, turning every card that leaves it into a brand-new 2/2 Skeleton Pirate token while providing a passive +1/+1 buff to your evolving crew.