Personally, I would just fill the deck with pieces like Ruin-Lurker Bat or Blind Hunter, just so I could have my Batty fun
Then, something like [c]Past in Flames[/c] will give them all flashback, so you can cast each one of them a second time
There are a few interesting things to take note of
Jan Jansen, Chaos Crafter is another interesting one, allowing you to sacrifice an artifact to get two, whether turning noncreatures into two constructs or a creature into two Treasures
Archon of Cruelty This list wouldnt be complete without a stonking great beastie to reanimate, and for that, I am currently super high on Archon of Cruelty
The Steel inks simplistic, brute-force nature requires sufficient support to get the ball rolling