Hopefully, this will explain who the heroes are
If the revealed card has a cost of 4 or more, return up to 1 of your Characters to the owner's hand
To go other routes for draw, I would consider including Grothama, All-Devouring to attack/fight/"sac" a bunch of "excess" creatures for draw, or Skullmulcher does similar in a pure sac way, or perhaps Ohran Frostfang, Regal Force, Toski, Bearer of Secrets, Benefactor's Draught, Mind's Eye, War Room, and while Nissa, Voice of Zendikar is off the Elf theme, it's still effective for more than draw
Nevertheless, playing Viconia, Disciple of Arcana to steal a bomb from your opponents graveyard could result in a fun snap concede