Invasion of the Plane

When this enchantment is cast, place {x} number
of counters on enemy land, as long as a land has
a counter, it now has 0/4 stats, all creatures you control and all damage dealing spells can now
target those lands as if they were creatures.
When there are no more lands with counters on
them, exile this card. If this card is removed from
the battlefield, remove the counters.
"All shall burn under hoof and horn" -Minos