The unfinished spell was Finite Incantatem, a universal counterspell, which was why it always proved incompatible with the spells above.
But Shawn particularly liked this spell and kept wanting to incorporate it into his Thunder Harp Compound Charms.
After all, he already had every other type of spell covered. All he lacked was a counterspell.
Yet with his current understanding of magic, Shawn could only just manage to make the first six strings compatible.
Adding Finite Incantatem, whose properties directly conflicted with theirs, was another matter entirely.
Still, Shawn had not given up. He regarded this spell-construction experiment as a way to explore magic and train his fine control over spells.
The results had always been rewarding.
After experimenting for a while, Shawn sighed and stopped trying to shape the seventh string.
He extended his right hand, swept it gently across the six strings, and began to play.
"Ding, dong, ding, dong!"
As the notes rang out, the plucked strings sent ripples of colored light spreading in every direction.
They lifted his short black hair and set his purple clothes snapping in the wind.
A moment later, the Charms Training Room, which spanned several hundred square meters, began to transform.
Dark clouds churned beneath the ceiling. Purple lightning crackled, and Lightning Swords took shape within the clouds, seemingly ready to strike at any moment.
Around him, an Electricity Net abruptly materialized, stretching up to the ceiling. Purple arcs danced across it, interspersed with grayish-white light.
The Electricity Net was no longer limited to trapping people and shocking them. It could now petrify anyone who touched it.
"Ding, dong~ ding, dong!"
As Shawn continued playing the cold, haunting melody, purple birds of Fiendfyre appeared around him, wheeling through the air as black water pythons coiled below.
As the melody soared, spells