As a relatively rare seventh-tier spell, Raging Thunder Skyfall's greatest feature was its extremely powerful spell penetration!
Skrull drone swarms generally possessed high Magic Resistance, and the Micro Deflection Field Shield activated on their hulls gave them high Physical Resistance as well. Elemental spells such as fire, water, earth, and lightning dealt very little damage to the drones. Only Space Element Dimensional Slash had somewhat acceptable damage, but its efficiency in shooting down enemy aircraft was hardly outstanding.
The only exception was the seventh-tier spell Raging Thunder Skyfall!
Among seventh-tier area spells, this spell's energy density per unit was unquestionably the highest. It could effectively pierce the drones' magic-resistant shells and directly burn out the electronic components inside.
Skrull drones were extremely sophisticated machines. Every electronic component within them was indispensable and carried out a major function.
Raging Thunder Skyfall only needed to burn out some of their electronic components to destabilize the drones or even make them fall from the sky.
The Raging Thunder Skyfall cast by Su Yu's clone had clearly achieved exactly that effect.
Dense, pitch-black thunderclouds blanketed the sky. In an instant, lightning flashed and thunder roared as wild bolts danced through the air!
The dense lightning formed silver serpents, countless silver serpents intertwining until they finally became a dense torrent of lightning like a waterfall!
The lightning torrent poured downward, striking the drone swarm below head-on.
How could the drones withstand the scouring of such an enormous energy torrent? Several at the forefront were pierced straight through and exploded into fireworks in the sky!
The drones caught in the lightning torrent's spread did not fare much better.
Many drones were forcibly invaded by stray currents racing in every direction, their internal components burned out over large areas, sending them plunging headfirst from the sky.
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