Infection Hazard

■ Set (This card remains on the field)

■ 《Plague》 spells you cast cannot be nullified.

■ When you cast a spell, choose up to one 《Plague》 monster or item on your field, and drop the top card of your deck. If the card dropped is a 《Plague》 spell, you may put that card into the chosen card's soul. This ability only activates once per turn.