Arcane Charge

You can touch a object, and charge it with with Raw arcane energy. Choose a number of non-magical objects no larger than 1 foot equal too your Spellcasting Ability Modifier, These items become charged for the duration of the spell. For as long as these items remain charged, you may choose either a hand gesture, a spoken word or phrase to detonate these objects as a Bonus Action on your turn aslong as you are within 90ft of the object(s). Upon detonation, the object is destroyed and all creatures within a 10 ft. sphere must make a Dexterity Saving Throw, on a failure, the target takes 2d4 Force damage, or half as much on a success. If any creature fails it's save and is Medium or smaller, it is pushed 10 ft. away from the detonation point. You may choose a single phrase for multiple charged objects, or up to as many phrases as you have charges for.

Objects charged in this way are engraved with a small arcane symbol that glows a faint blue only visible within 5 ft. of the the charged object.
This spell deals double damage to objects, buildings and constructs.

At Higher Levels: When casting this spell with a spell slot of 4th level or higher, you may extend the time of the spell's duration by one hour, and increse the amount of objects you can charge by one.