MP23-EN001 * Libromancer Geek Boy * Ultra Rare * 25th Anniversary Tin: Dueling Heroes Mega Pack DUAD-EN087 If your opponent Special Summons

If your opponent Special Summons a monster(s) (except during the Damage Step): You can target 1 Reptile monster in your GY

your opponent cannot target this card with card effects

destroy that monster on the field

Once per turn: You can detach 1 Xyz Material from this card

if you control no other monsters: You can Special Summon 1 "Noble Knight" monster from your Deck in Defense Position

MP23-EN001 * Libromancer Geek Boy * Ultra Rare * 25th Anniversary Tin: Dueling Heroes Mega Pack DUAD-EN087 If your opponent Special SummonsYou can reveal 1 Ritual Monster in your hand: Special Summon this card from your hand. If this card is Special Summoned: You can add 1 "Libromancer" Spell from your Deck to your hand. You can only use each effect of "Libromancer Geek Boy" once per turn.