بروباغانداك

Once per turn: You can declare 1 original Monster Type (Beast, Insect, Plant, or Rock) you control; this card becomes the declared Type. While this card is in the Monster Zone, if this card changed its Type by this effect, apply the following effects.
● All face-up monsters on the field become the same Type as this card.
● Your opponent cannot target monsters on the field of the same Type as this card with the effects of monsters they control of the same Type.