Zombie leader

'Isn't this way too easy?' Mathew asked himself as he observed how a part of his will coated in mana continued to cut down the zombies around him.

This time, rather than a simple bolt or a wave, Mathew's mana took the form of a half-circle, making it appear like some sort of a boomerang. And just like a boomerang, it continued to spin on its own while sliding through the air and zombie's necks alike.

'It stays active as long as it's within a certain distance from me,' Mathew observed, kicking down at the zombie's head that rolled towards his legs. He then wasted a moment grabbing the core from the zombie's brains.

'Then what would happen if I were to embed the intent on a core instead?'

Mathew's reasoning was sound. Since he was the source of both the mana for the spell and the intent that shaped it, then embedding his will on a core would eliminate both the possible reasons that restricted the range of his spells.