Earthquake

From now on, the damage caused by an earthquake also depends on the terrain.

Earthquakes in open areas (fields, roads...) will cause less damage than
before; in other terrains (forests, mountains...) the damage will be greater.

When casting an earthquake indoors, there is a chance of debris falling from
the ceiling and causing extra damage. Contrarily to what happens outdoors,
damage from falling debris may affect even the caster.