Neutron Blast [DPRP-EN008] Ultra Rare Wyrm then target 1 card in

then target 1 card in your GY

when your opponent activates a card or effect

You can only use this effect of "Mekk-Knight Blue Sky" once per turn

If this card is sent to the Graveyard as a Fusion Material for a Fusion Summon: You can activate this effect

If this card is in your GY and you control no monsters: You can Special Summon this card

Neutron Blast [DPRP-EN008] Ultra Rare Wyrm then target 1 card inSet: Duelist Pack: Rivals of the Pharaoh Card type: Normal Spell Rarity: Ultra Rare Target 1 Fusion Summoned "Blue Eyes Ultimate Dragon" you control; this turn, it can make a second and third attack during each Battle Phase, also when it attacks, your opponent's cards and effects cannot be activated until the end of the Damage Step.