Crude Method

"I wonder if my summons can power up this way as well." Elliot wondered.

[Only physical skills have that effect.] Hawk replied when Elliot asked him about it. [This effect is not applicable to summons.]

"Fair enough." Elliot nodded as he played a game of lightning and fire dodgeball with the enraged two headed hydra. He just had an incredible idea thanks to his enhanced intelligence.

He wanted to try and combine Lightning Strike and Ice Beam, like he had done with Lightning Slash. With 5000% increased damage from Lightning Strike and 500% increased damage from Ice Beam, combining both together would qualitatively modify his attack into an astounding 25,000%!

Of course, it wouldn't be a perfect combination, and he probably wouldn't get 25,000%. But it would still be a powerful combination, one that would allow him to fight enemies many power levels above him.

And if he added Dragon Aura and Leadership Aura, his attack would have a staggering cap of 50,000%!