Runecaster

You become adept at inscribing spells into the world around you through magical runes.

You may expend two spell slots of any given level to inscribe a single spell of that level into a rune trap. A rune trap can be placed on the ground in a line that can extend up to 60 feet across solid surfaces. Upon any tampering with such runes by any creature other than those designated by the caster the spell inscribed is then cast at the chosen level.

Alternatively, a Runecaster may inscribe a spell onto a singular object, causing the spell to be cast upon the tampering with said object. (Such as shocking grasp on a coin purse)

(NOTE: Feel free to offer suggestions to improve and/or balance this feat, as a relatively new DM any and all help is much appreciated!)