After listening to some music

|Symphony of the New Universe, Our Future Sun|||Spell Card|Spell||Continuous|||When this card is activated; all EARTH Rock and WIND Pyro, and WATER Aqua-type monster on the field is shuffled into the deck, then halve your life points. For every monster shuffled to the deck this way, draw 1 card OR destroy 1 card on the field. Once per turn, special summon 1 level 4 or lower EARTH Rock-type monster from your deck OR 1 WIND Pyro OR WATER Aqua-type monster from your hand, then discard 1 card. Your opponent’s life point cannot be decreased (cards with life points cost cannot be activated). During your 8th end phase after this card’s activation, send this card to the graveyard, then overlay 8 monsters from your hand, field, graveyard, or banished pile to Xyz summon 1 “The Sun Of the Future Universe, Ursvak” from your extra deck. The summon cannot be chained by other card effects and it gains 1600 ATK.|

|The Sun Of the Future Universe, Ursvak||Pyro/Synchro/Effect|FIRE|8||3600|3600|(Xyz, 4 level 8 monsters) If this card is summoned by the effect of “Symphony of the New Universe, Our Future Sun”, shuffle all face-up cards on the field when this card is summoned. You can xyz summon this card by using 1 EARTH Rock, 1 WIND Pyro, and 1 WATER Aqua-type monster you control as the xyz material. Once per turn, you can detach 1 Xyz material from this card to declare 1 attribute. Monsters your opponent possess with the declared attribute cannot activate their effect or be summoned when this card is face-up on the field.|

shuffle all face-up cards on the field when this card is summoned.

Shuffle them into the deck, or....

to the deck. seems i should fix this...