Summon Hurricane

Bending the forces of nature to your will, you're able to summon a hurricane with a 10-tile radius anywhere within a 20 tile radius of the caster.

Unfortunately, even you aren't immune from these kinds of forces; so anyone, including yourself, caught within it must roll 1d20 each turn they reside within the hurricane. If they fail the save (<15 on the roll), they take 1d20 damage.

There is one exception, however, and that is the eye of the storm. The center tile & its immediately-adjacent tiles of the storm are completely safe to reside within.

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Note: The storm lasts for 10 turns and can not be cancelled.

Cost: 3 Spell Castings

Speed: Action

Damage: 1d20 on a failed save.