During each of your End Phases, destroy this card unless you send 1 "Iron Core of Koa'ki Meiru" from your hand to the Graveyard or reveal 1 Machine-Type monster in your hand. If you draw "Iron Core of Koa'ki Meiru" during your Draw Phase, you can reveal it to your opponent to draw 1 more card.
Reveals your hand for cost / You draw cards / Sends from hand to Graveyard for cost
I think this card actually works quite well with Koakis. It has decent defense that has been enough to spare my life for one turn, and its effect combos pretty well with Iron Core's mechanics to allow you to maintain a bit of draw power while paying costs if need be, or provides a second card in the draw phase if you draw Iron Core naturally. B-