Wtf why even UR? If the enemy moster is not destroyed, it means that probably yours is. It's a worse version of Sakuretsu or WR and you need a Constelar monster to activate. Do I fail to see the synergy or is this card simply bad? In all cases, SR at best.
Shuffling to the hand is one thing, but back to the deck strains the opponent even more. This is almost like a drowning mirror force without direct attack requirement exclusive for constellars. Even if constellars are bad right now, this trap can change the flow of a duel!