Even low-level Great Sin Cards like "Wrath III" and "Gluttony II" could send his corresponding stats skyrocketing and make him lose control in an instant when used on himself.
It could be said that these Great Sin Cards were essentially deadly poison to him.
His research and application of Great Sin Cards had been intended to eliminate that effect, but that was clearly not possible at present.
Fortunately, this was not his only method of evolution.
Using Great Sin Cards to evolve Magic Spirits was still the core of his system.
But by now, he had already conducted much derivative research based on it.
The most notable of these was the Progenitor's Proof he had only recently refined. It was the result of his research into the evolution item—the King's Rock. With this result as a foundation, he could continue expanding his research and develop more varieties of King's Rock.
And even before that, he had achieved other results.
Though it was no longer applicable now, it had once been one of his trump cards.
Namely, the Moon God Stone, which could evolve the Moon God Armament from Moon God into the Night Tiger God.
However, neither the Moon God Stone nor the Progenitor's Proof had completely severed their connection to the Great Sins.
Bliss had been added during the refinement of the Moon God Stone, while Pride had been added during the refinement of the Progenitor's Proof. The evolution method that could truly escape the influence of the Great Sins was Psychic Power!
Using Psychic Power alone, he had already been able to evolve DemiDevimon into Devimon, Agumon into Greymon, Gabumon into Garurumon, and Renamon into Kyubimon...
Could using it on himself this time lead to a new breakthrough? With that thought, Dark could not help but ponder carefully.