Ritual Beast Ambush [SECE-EN074] Common Duel Power You can only use this

You can only use this effect of “Sinister Serpent” once per turn

That monster must be on the field to activate and to resolve this effect

If this card is Tributed: Special Summon 1 Dragon monster from your hand or Deck

You must also Tribute monsters from your hand or field whose total Levels equal 1 or more

then target 1 "Nekroz" card in your GY

Ritual Beast Ambush [SECE-EN074] Common Duel Power You can only use thisSet: Secrets of Eternity Card type: Normal Trap Rarity: Common Target 1 of your "Ritual Beast Tamer" monsters and 1 of your "Spiritual Beast" monsters that are banished and or in your Graveyard; Special Summon them in Defense Position. After this card is activated, you cannot Special Summon monsters, except "Ritual Beast" monsters, for the rest of this turn. You can only activate 1 "Ritual Beast Ambush" per turn.