"Elemental magic consists of Fire, Blizzard, and Thunder. These magic attacks have different effects based on the weather and environment. For example, certain objects, including grassy fields, are flammable when casting Fire. Or, if you’re using Thunder while it’s raining, it will deal more damage. If there is water in a Blizzard attack’s initial area of effect, then it will freeze for a bit."
That dynamism to the design is just impressive. I love it when the environment and weather affect the gameplay deeply.
They also said there will be anothe rkind of magic called ring magic later in the game. Probably summons and more powerful magic.