Hippo Plague

: This creature gets +1/+1 until end of turn. Target opponent creates a 1/1 green Hippo creature token. : This creature gains protection from black and from red until end of turn. Target opponent gains 2 life. : This creature gains flying until end of turn. Target opponent may draw a card.

As this enchantment enters, choose a creature type. All creatures of the chosen type get -1/-1.

Whenever a creature enters, its controller sacrifices a creature or land of their choice.