Earth actually has a decent selection of spells, with the spider summon, poison dart, poison arrow and boulder dash available within the first ten levels.
You missed my point, which is a little surprising considering it was only one sentence. It was not "Earth has nothing to do."
EARTH RESISTANCE is much less valuable than other resistance types because there are only two spells which do Earth-Type Damage.
Earth is actually odd, because it's the only spell school that has two different elements under one banner. Earth Shield gives both Poison and Earth resistance, for example.
But yeah, you're right. Larian should add a few spells there.
Tenebrium is the strangest one, though. At least earth damage actually exists.
