Burning Skyfall

If your opponent casts a creature spell into the
battlefield, their base power and toughness will
be subtracted by the amount of land permanents,
artifacts, and enchantments they control.
each time a card they control dies, is sacrificed, or
put back into the library will deal damage towards
target opponent equal to all cards in the graveyard.
all instances, enchantments cost {1} more to cast.