Mulligans
Just clear the board by playing a deathrattle-damage-everything-minion and killing the 1/1 Reflection, while decking him slowly. You can also draw with Dancing Swords, heal with a Corrupted Healbot or Zombie Chow , get a minion with Deathlord… just make sure there is space for the Reflection.
Try to save Assasinate and Sap for Archmage Antonidas and Rhonin .