Second Snake's Opinion, Siana

:At the end of the battle this unit was attacked by a rear-guard, if no cards were put on this battle, your opponent chooses a card from their hand, and they may discard it. If they did not discard a card, bind the rear-guard that attacked. :When this unit is rode upon by a grade 2 card with "Siana" in its card name, 1, draw a card, and return all of your opponent's front row rear-guards to hand.