Shardstorm

Evocation [cold]Tier: 2Components: VerbalCasting Time: 1 reaction or 1 major actionRange: 60 ftTarget: Your Ice BladeDuration: InstantaneousSaving Throw: Reflex partialThe word chill the airs as it leaves your mouth, and minute cracks run down the length of your blade. Then it explodes.

You charge your Ice Blade with raw elemental fury. The blade detonates in an explosion of razor shards, dealing 1d6/level slashing damage to everyone within 10 ft. A creature which succeeds on a Reflex save takes half damage.

Unlike most reaction spells, you don't need a specific event to react and cast this spell; if you have this spell prepared, you can shatter your blade at any time, or in response to any occurence.