Noticia - Constellswarm Belzebuth (Legacy of Variant)

Constellswarm Belzebuth
2 Level 4 monsters
During your Main Phase or your opponent’s Battle Phase, if the combined number of cards in your hand and side of the field is less than the combined number of cards in your opponent’s hand and side of the field: You can detach 1 Xyz Material from this card; destroy all cards on the field, except this card, but any damage inflicted to your opponent this turn becomes 0.