Insider
At the end of the battle, the Power of Enhancement stored in Dragon Might had been applied to the Symbol of Extraction. Thereafter, the four golden threads of extraction inside Thaor grew several times stronger.
Compared to the light energy drain before, 10-layer Extraction evolved into a mega drain of energy, emptying Thaor's energy storage near instantly.
The sudden drain of Thaor's remaining energy took the Berserker by surprise. His crimson aura was forcefully retracted, and the freezing mist in the combat ring took effect. Simultaneously, Michael's origin energy was rapidly replenished by annexing the energy Extraction had extracted within Thaor.