The Hidden City [TDIL-EN085] Secret Rare Machine and Effect Monster effects cannot

and Effect Monster effects cannot be activated

If this card leaves the field: Destroy all monsters your opponent controls

once per battle involving this card: You can banish 1 Level 1 monster from your Graveyard

when an attack is declared involving a monster you control and an opponent's monster: You can activate this effect

If this Fusion Summoned card you control is sent to your GY by an opponent's card: You can Special Summon 1 "Cyber Dragon" from your hand

The Hidden City [TDIL-EN085] Secret Rare Machine and Effect Monster effects cannotSet: The Dark Illusion Card type: Field Spell Rarity: Secret Rare When this card is activated: You can add 1 "Subterror" monster from your Deck to your hand. Once per turn: You can change 1 face down Defense Position "Subterror" monster you control to face up Attack or Defense Position. Once per turn, when an opponent's monster declares an attack: You can change 1 face down Defense Position "Subterror" monster you control to face up Attack or Defense