Hierophant of Prophecy [REDU-EN045] Ultimate Rare Bonds Beyond Time Movie Pack You can only use this

You can only use this effect of "Speedroid Skull Marbles" once per turn

If this card attacks while in Defense Position

that monster's original DEF becomes 2600

it gains 1000 ATK/DEF until the end of this turn

Spell/Trap Cards you control cannot be destroyed by card effects

Hierophant of Prophecy [REDU-EN045] Ultimate Rare Bonds Beyond Time Movie Pack You can only use thisSet: Return of the Duelist Card type: Xyz Effect Monster Rarity: Ultimate Rare Attack: 2800 Defense: 2600 2 Level 7 Spellcaster Type monsters Once per turn: You can detach 1 Xyz Material from this card; destroy Spell Trap Card(s) your opponent controls, up to the number of "Spellbook" Spell Cards in your Graveyard.