Poisonous Winds
猛もう毒どくの風かぜ
This card can be useful alongside or without "Imperial Iron Wall" to contrast the "Ritual Beast" Deck.
It is a Spell Card, so you can active it during the Turn You draw it.
Also it can Slow the Pendulum Summon and ATK of Yosenju monster (But remember they strong point is to Normal Summon, so this card most of the times will just decrease their ATK).
This card can slow down popular Decks like Dragunity, Harpie, Mecha Phantom Beast etc