Spellbook of Secrets (UTR) (REDU-EN057) - Return of the Duelist Unlimited Number_MFC-058 it is unaffected by other

it is unaffected by other card effects until the end of the Damage Step

Destroy a number of monsters on the field equal to the number of Heads

Card TextWhen this card destroys an opponent's monster

while you control this Fusion Summoned card: You can toss a coin and call it

you can Special Summon 1 Hyper Psychic Blaster from your Graveyard

Spellbook of Secrets (UTR) (REDU-EN057) - Return of the Duelist Unlimited Number_MFC-058 it is unaffected by otherTypenull Normal Spell AttributeSPELL Card TextAdd 1 "Spellbook" card from your Deck to your hand, except "Spellbook of Secrets". You can only activate 1 "Spellbook of Secrets" per turn.