Desecration Ritual

As an additional cost to cast this spell, sacrifice 3 creatures
Enchant target land. Enchanted land taps for {b}{b}. This mana can only be used to cast Demon or Devil spells

{b}{b}{b}, Sacrifice enchanted land: destroy up to 3 target lands

The population of Port Frey looked on in horror, as everything they had worked to protect burned in a blaze of hellfire