Pulsar, Flarescent Dragon

:[ 1 & 1] When this unit is placed on and rides a Zodiac Time Beast unit, you may pay the cost. If you do, your opponent chooses one of his or her rear-guards, and puts that unit on the bottom of his or her deck. : 1‐Zodiac Time Beast] When this unit's attack hits a vanguard, you may pay the cost. If you do, choose one of your opponent's rear-guards, and your opponent puts that unit on the bottom of his or her deck.