Hieratic Dragon of Tefnuit
Ⓢ If only your opponent controls a monster, you can Special Summon this card (from your hand),
but it can't attack this turn.
① If this card is Tributed: Special Summon 1 Dragon Normal Monster from your hand/Deck/GY, and make its ATK/DEF 0.
● If this card is Tributed for a cost (even for a Tribute Summon or to Special Summon Su), this card's effect must be Chain Link 1 on a new chain.
EG: You tribute this card for "Caius the Shadow Monarch". This card's effect is CL1, and Caius' is CL2.
● This effect is mandatory.
It will Trigger if Tributed for a Tribute Summon, for a Ritual Spell, or even to pay a cost of a Trap which Tributes.