The next morning, Wolfe woke up early, leaving Cassie and Ella entwined on the bed, and headed for the training room underground that the Witches used to practice new magic that might backfire on them.
There was a simple version of the [Lightning Elemental] called the [Lightning Sprite] that he wanted to try to cast. According to the description, it would float in the air above him, and fire lightning bolts at the targets that he designated. That was all that it could really do, as it was just a ball of lightning, but there were multiple layers of magic to it that would let it pick targets from a generalized command, or guard a location.
Both of those were valuable abilities compared to a regular lightning array, and the output was variable, so it could just shock people as a warning if he left the sprite to guard an off limits location.