To use his 'trick', Skullius had to sabotage the need for a skill in his arsenal to use mana for its activation, and then isolate it from a mana channel with two separate sword techniques.
These actions were the prerequisite required to initiate a complex mechanism he had created, where fifty Creeds were used up every ten seconds he was engaged in combat to keep the likelihood of his 'trick' working for him high.
At present, about a quarter of an hour had passed since Replicus and Skullius had begun fighting, and the latter had sacrificed about 4,500 Creeds so far. It was a truly costly technique.
Replicus seeing how this trick worked through the Rule he made to make aware his eyes to any of Skullius' tricks, had truly been a god-send fortune.
It was through seeing how Skullius made his cheat work, that he made his own against Skullius' Territory. It operated on a… very vaguely similar functionality though.