When Austin awakened his third talent magic, Electric Current Control, he attempted to blend strands of thunder together to form spherical lightning.
However, the thunder ball forcefully bonded together by the power of his giant dragon legendary bloodline couldn't remain stable. Once Austin withdrew his talent magic control, the thunder ball, painstakingly fused together, would collapse. Despite the huge expenditure of effort and energy, its power was even inferior to the Thunder Strike Technique with similar energy consumption, thus Austin did not pursue further research back then.
Because he couldn't constrain the rampant thunder elements, creating spherical lightning through immense effort couldn't maintain its shape, and at most, it could only sustain basketball-sized spheres without expanding further.
