Miracle Raven

[ Pendulum Effect ] 
Once per turn, during your Main Phase: You can Ritual Summon this card, by Tributing monsters from your hand or field whose total Levels equal or exceed 1.

[ Monster Effect ] 
You can Ritual Summon this card with "Miracle Raven". Must be Ritual Summoned. This Ritual Summoned card is unaffected by your opponent's activated effects. If you Ritual Summon exactly 1 Ritual Monster with a card effect that requires use of monsters, this card you control can be used as the entire Tribute. If this card is Tributed for a Ritual Summon: You can add 1 Ritual Monster from your Deck to your hand. You can only use this effect of "Miracle Raven" once per turn.